# CVE-2025-26695: Downloading of OpenPGP keys from WKD used incorrect padding

CVE-2025-26695 is fixed in 138 products on 2 platforms, first by Mozilla Thunderbird (af) 136.0, released March 4, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-26695
- Priority: Routine
- CVSS: 5.3 (Important)
- EPSS: 0.0016
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 10, 2025
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2025-26695

## Description

When requesting an OpenPGP key from a WKD server, an incorrect padding size was used and a network observer could have learned the length of the requested email address. This vulnerability was fixed in Thunderbird 136 and Thunderbird 128.8.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Mozilla Thunderbird (af) | 136.0 | [Mozilla Thunderbird (af) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.af-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (ar) | 136.0 | [Mozilla Thunderbird (ar) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ar-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (ast) | 136.0 | [Mozilla Thunderbird (ast) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ast-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (be) | 136.0 | [Mozilla Thunderbird (be) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.be-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (bg) | 136.0 | [Mozilla Thunderbird (bg) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.bg-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (br) | 136.0 | [Mozilla Thunderbird (br) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.br-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (ca) | 136.0 | [Mozilla Thunderbird (ca) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ca-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (cs) | 136.0 | [Mozilla Thunderbird (cs) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.cs-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (cy) | 136.0 | [Mozilla Thunderbird (cy) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.cy-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (da) | 136.0 | [Mozilla Thunderbird (da) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.da-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (de) | 136.0 | [Mozilla Thunderbird (de) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.de-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (dsb) | 136.0 | [Mozilla Thunderbird (dsb) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.dsb-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (el) | 136.0 | [Mozilla Thunderbird (el) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.el-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (en-CA) | 136.0 | [Mozilla Thunderbird (en-CA) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.en-ca-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (en-GB) | 136.0 | [Mozilla Thunderbird (en-GB) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.en-gb-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (en-US) | 136.0 | [Mozilla Thunderbird (en-US) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (es-AR) | 136.0 | [Mozilla Thunderbird (es-AR) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.es-ar-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (es-ES) | 136.0 | [Mozilla Thunderbird (es-ES) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.es-es-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (es-MX) | 136.0 | [Mozilla Thunderbird (es-MX) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.es-mx-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (et) | 136.0 | [Mozilla Thunderbird (et) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.et-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (eu) | 136.0 | [Mozilla Thunderbird (eu) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.eu-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (fi) | 136.0 | [Mozilla Thunderbird (fi) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.fi-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (fr) | 136.0 | [Mozilla Thunderbird (fr) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.fr-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (fy-NL) | 136.0 | [Mozilla Thunderbird (fy-NL) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.fy-nl-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (ga-IE) | 136.0 | [Mozilla Thunderbird (ga-IE) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ga-ie-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (gd) | 136.0 | [Mozilla Thunderbird (gd) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.gd-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (gl) | 136.0 | [Mozilla Thunderbird (gl) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.gl-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (he) | 136.0 | [Mozilla Thunderbird (he) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.he-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (hr) | 136.0 | [Mozilla Thunderbird (hr) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hr-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (hsb) | 136.0 | [Mozilla Thunderbird (hsb) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hsb-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (hu) | 136.0 | [Mozilla Thunderbird (hu) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hu-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (hy-AM) | 136.0 | [Mozilla Thunderbird (hy-AM) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hy-am-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (id) | 136.0 | [Mozilla Thunderbird (id) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.id-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (is) | 136.0 | [Mozilla Thunderbird (is) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.is-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (it) | 136.0 | [Mozilla Thunderbird (it) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.it-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (ja) | 136.0 | [Mozilla Thunderbird (ja) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ja-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (ka) | 136.0 | [Mozilla Thunderbird (ka) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ka-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (kab) | 136.0 | [Mozilla Thunderbird (kab) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.kab-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (kk) | 136.0 | [Mozilla Thunderbird (kk) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.kk-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (ko) | 136.0 | [Mozilla Thunderbird (ko) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ko-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (lt) | 136.0 | [Mozilla Thunderbird (lt) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.lt-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (lv) | 136.0 | [Mozilla Thunderbird (lv) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.lv-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (ms) | 136.0 | [Mozilla Thunderbird (ms) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ms-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (nb-NO) | 136.0 | [Mozilla Thunderbird (nb-NO) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.nb-no-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (nl) | 136.0 | [Mozilla Thunderbird (nl) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.nl-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (nn-NO) | 136.0 | [Mozilla Thunderbird (nn-NO) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.nn-no-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (pa-IN) | 136.0 | [Mozilla Thunderbird (pa-IN) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pa-in-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (pl) | 136.0 | [Mozilla Thunderbird (pl) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pl-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (pt-BR) | 136.0 | [Mozilla Thunderbird (pt-BR) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pt-br-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (pt-PT) | 136.0 | [Mozilla Thunderbird (pt-PT) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pt-pt-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (rm) | 136.0 | [Mozilla Thunderbird (rm) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.rm-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (ro) | 136.0 | [Mozilla Thunderbird (ro) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ro-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (ru) | 136.0 | [Mozilla Thunderbird (ru) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ru-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (sk) | 136.0 | [Mozilla Thunderbird (sk) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sk-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (sl) | 136.0 | [Mozilla Thunderbird (sl) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sl-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (sq) | 136.0 | [Mozilla Thunderbird (sq) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sq-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (sr) | 136.0 | [Mozilla Thunderbird (sr) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sr-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (sv-SE) | 136.0 | [Mozilla Thunderbird (sv-SE) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sv-se-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (th) | 136.0 | [Mozilla Thunderbird (th) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.th-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (tr) | 136.0 | [Mozilla Thunderbird (tr) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.tr-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (uk) | 136.0 | [Mozilla Thunderbird (uk) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.uk-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (uz) | 136.0 | [Mozilla Thunderbird (uz) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.uz-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (vi) | 136.0 | [Mozilla Thunderbird (vi) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.vi-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (zh-CN) | 136.0 | [Mozilla Thunderbird (zh-CN) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.zh-cn-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird (zh-TW) | 136.0 | [Mozilla Thunderbird (zh-TW) 136.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.zh-tw-136.0.md) | Mar 4, 2025 |
| Windows apps | Mozilla Thunderbird ESR (af) | 128.8.0 | [Mozilla Thunderbird ESR (af) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.af-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (ar) | 128.8.0 | [Mozilla Thunderbird ESR (ar) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ar-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (ast) | 128.8.0 | [Mozilla Thunderbird ESR (ast) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ast-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (be) | 128.8.0 | [Mozilla Thunderbird ESR (be) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.be-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (bg) | 128.8.0 | [Mozilla Thunderbird ESR (bg) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.bg-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (br) | 128.8.0 | [Mozilla Thunderbird ESR (br) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.br-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (ca) | 128.8.0 | [Mozilla Thunderbird ESR (ca) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ca-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (cak) | 128.8.0 | [Mozilla Thunderbird ESR (cak) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.cak-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (cs) | 128.8.0 | [Mozilla Thunderbird ESR (cs) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.cs-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (cy) | 128.8.0 | [Mozilla Thunderbird ESR (cy) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.cy-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (da) | 128.8.0 | [Mozilla Thunderbird ESR (da) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.da-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (de) | 128.8.0 | [Mozilla Thunderbird ESR (de) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.de-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (dsb) | 128.8.0 | [Mozilla Thunderbird ESR (dsb) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.dsb-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (el) | 128.8.0 | [Mozilla Thunderbird ESR (el) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.el-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (en-CA) | 128.8.0 | [Mozilla Thunderbird ESR (en-CA) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.en-ca-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (en-GB) | 128.8.0 | [Mozilla Thunderbird ESR (en-GB) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.en-gb-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (en-US) | 128.8.0 | [Mozilla Thunderbird ESR (en-US) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (es-AR) | 128.8.0 | [Mozilla Thunderbird ESR (es-AR) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.es-ar-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (es-ES) | 128.8.0 | [Mozilla Thunderbird ESR (es-ES) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.es-es-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (es-MX) | 128.8.0 | [Mozilla Thunderbird ESR (es-MX) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.es-mx-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (et) | 128.8.0 | [Mozilla Thunderbird ESR (et) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.et-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (eu) | 128.8.0 | [Mozilla Thunderbird ESR (eu) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.eu-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (fi) | 128.8.0 | [Mozilla Thunderbird ESR (fi) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.fi-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (fr) | 128.8.0 | [Mozilla Thunderbird ESR (fr) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.fr-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (fy-NL) | 128.8.0 | [Mozilla Thunderbird ESR (fy-NL) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.fy-nl-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (ga-IE) | 128.8.0 | [Mozilla Thunderbird ESR (ga-IE) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ga-ie-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (gd) | 128.8.0 | [Mozilla Thunderbird ESR (gd) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.gd-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (gl) | 128.8.0 | [Mozilla Thunderbird ESR (gl) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.gl-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (he) | 128.8.0 | [Mozilla Thunderbird ESR (he) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.he-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (hr) | 128.8.0 | [Mozilla Thunderbird ESR (hr) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.hr-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (hsb) | 128.8.0 | [Mozilla Thunderbird ESR (hsb) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.hsb-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (hu) | 128.8.0 | [Mozilla Thunderbird ESR (hu) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.hu-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (hy-AM) | 128.8.0 | [Mozilla Thunderbird ESR (hy-AM) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.hy-am-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (id) | 128.8.0 | [Mozilla Thunderbird ESR (id) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.id-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (is) | 128.8.0 | [Mozilla Thunderbird ESR (is) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.is-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (it) | 128.8.0 | [Mozilla Thunderbird ESR (it) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.it-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (ja) | 128.8.0 | [Mozilla Thunderbird ESR (ja) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ja-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (ka) | 128.8.0 | [Mozilla Thunderbird ESR (ka) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ka-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (kab) | 128.8.0 | [Mozilla Thunderbird ESR (kab) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.kab-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (kk) | 128.8.0 | [Mozilla Thunderbird ESR (kk) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.kk-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (ko) | 128.8.0 | [Mozilla Thunderbird ESR (ko) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ko-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (lt) | 128.8.0 | [Mozilla Thunderbird ESR (lt) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.lt-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (lv) | 128.8.0 | [Mozilla Thunderbird ESR (lv) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.lv-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (ms) | 128.8.0 | [Mozilla Thunderbird ESR (ms) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ms-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (nb-NO) | 128.8.0 | [Mozilla Thunderbird ESR (nb-NO) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.nb-no-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (nl) | 128.8.0 | [Mozilla Thunderbird ESR (nl) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.nl-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (nn-NO) | 128.8.0 | [Mozilla Thunderbird ESR (nn-NO) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.nn-no-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (pa-IN) | 128.8.0 | [Mozilla Thunderbird ESR (pa-IN) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.pa-in-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (pl) | 128.8.0 | [Mozilla Thunderbird ESR (pl) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.pl-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (pt-BR) | 128.8.0 | [Mozilla Thunderbird ESR (pt-BR) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.pt-br-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (pt-PT) | 128.8.0 | [Mozilla Thunderbird ESR (pt-PT) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.pt-pt-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (rm) | 128.8.0 | [Mozilla Thunderbird ESR (rm) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.rm-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (ro) | 128.8.0 | [Mozilla Thunderbird ESR (ro) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ro-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (ru) | 128.8.0 | [Mozilla Thunderbird ESR (ru) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ru-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (sk) | 128.8.0 | [Mozilla Thunderbird ESR (sk) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sk-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (sl) | 128.8.0 | [Mozilla Thunderbird ESR (sl) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sl-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (sq) | 128.8.0 | [Mozilla Thunderbird ESR (sq) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sq-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (sr) | 128.8.0 | [Mozilla Thunderbird ESR (sr) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sr-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (sv-SE) | 128.8.0 | [Mozilla Thunderbird ESR (sv-SE) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sv-se-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (th) | 128.8.0 | [Mozilla Thunderbird ESR (th) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.th-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (tr) | 128.8.0 | [Mozilla Thunderbird ESR (tr) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.tr-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (uk) | 128.8.0 | [Mozilla Thunderbird ESR (uk) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.uk-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (uz) | 128.8.0 | [Mozilla Thunderbird ESR (uz) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.uz-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (vi) | 128.8.0 | [Mozilla Thunderbird ESR (vi) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.vi-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (zh-CN) | 128.8.0 | [Mozilla Thunderbird ESR (zh-CN) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.zh-cn-128.8.0.md) | Mar 5, 2025 |
| Windows apps | Mozilla Thunderbird ESR (zh-TW) | 128.8.0 | [Mozilla Thunderbird ESR (zh-TW) 128.8.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.zh-tw-128.8.0.md) | Mar 5, 2025 |
| Linux | MozillaThunderbird opensuse-leap 15.6 | 128.8.0-150200.8.203.1 | [SUSE-SU-2025:0849-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0849-1.md) | Mar 12, 2025 |
| Linux | MozillaThunderbird sles 15.6 | 128.8.0-150200.8.203.1 | [SUSE-SU-2025:0849-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-0849-1.md) | Mar 12, 2025 |
| Linux | thunderbird Debian 12.15 (bookworm) | 1:128.8.0esr-1~deb12u1 | [DEBIAN-CVE-2025-26695](https://patchblox.com/security/data/fix/linux/debian-cve-2025-26695.md) | Mar 10, 2025 |
| Linux | thunderbird Debian 13.5 (trixie) | 1:128.8.0esr-1 | [DEBIAN-CVE-2025-26695](https://patchblox.com/security/data/fix/linux/debian-cve-2025-26695.md) | Mar 10, 2025 |
| Linux | thunderbird Debian 14 | 1:128.8.0esr-1 | [DEBIAN-CVE-2025-26695](https://patchblox.com/security/data/fix/linux/debian-cve-2025-26695.md) | Mar 10, 2025 |
| Linux | thunderbird RHEL 8 | 0:128.8.0-2.el8_10 | [RHSA-2025:2900](https://patchblox.com/security/data/fix/linux/rhsa-2025-2900.md) | Mar 17, 2025 |
| Linux | thunderbird RHEL 9 | 0:128.8.0-2.el9_5 | [RHSA-2025:2899](https://patchblox.com/security/data/fix/linux/rhsa-2025-2899.md) | Mar 17, 2025 |
| Linux | thunderbird Ubuntu 22.04.1 LTS (jammy) | 1:128.12.0+build1-0ubuntu0.22.04.1 | [thunderbird 1:128.12.0+build1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-thunderbird-1-128.12.0-build1-0ubuntu0.22.04.1.md) | Jun 24, 2025 |
| Linux | thunderbird almalinux 8 | 128.8.0-2.el8_10.alma.1 | [ALSA-2025:2900](https://patchblox.com/security/data/fix/linux/alsa-2025-2900.md) | Mar 17, 2025 |
| Linux | thunderbird-gnome-support Ubuntu 22.04.1 LTS (jammy) | 1:128.12.0+build1-0ubuntu0.22.04.1 | [thunderbird-gnome-support 1:128.12.0+build1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-thunderbird-gnome-support-1-128.12.0-build1-0ubuntu0.22.04.1.md) | Jun 24, 2025 |
| Linux | thunderbird-mozsymbols Ubuntu 22.04.1 LTS (jammy) | 1:128.12.0+build1-0ubuntu0.22.04.1 | [thunderbird-mozsymbols 1:128.12.0+build1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-thunderbird-mozsymbols-1-128.12.0-build1-0ubuntu0.22.04.1.md) | Jun 24, 2025 |
| Linux | xul-ext-calendar-timezones Ubuntu 22.04.1 LTS (jammy) | 1:128.12.0+build1-0ubuntu0.22.04.1 | [xul-ext-calendar-timezones 1:128.12.0+build1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xul-ext-calendar-timezones-1-128.12.0-build1-0ubuntu0.22.04.1.md) | Jun 24, 2025 |
| Linux | xul-ext-gdata-provider Ubuntu 22.04.1 LTS (jammy) | 1:128.12.0+build1-0ubuntu0.22.04.1 | [xul-ext-gdata-provider 1:128.12.0+build1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xul-ext-gdata-provider-1-128.12.0-build1-0ubuntu0.22.04.1.md) | Jun 24, 2025 |
| Linux | xul-ext-lightning Ubuntu 22.04.1 LTS (jammy) | 1:128.12.0+build1-0ubuntu0.22.04.1 | [xul-ext-lightning 1:128.12.0+build1-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xul-ext-lightning-1-128.12.0-build1-0ubuntu0.22.04.1.md) | Jun 24, 2025 |

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Data as of 2026-11-09T13:31:49Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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