# CVE-2026-57963: Chat UI manipulation by injection

CVE-2026-57963 is fixed in 134 products on 3 platforms, first by Mozilla Thunderbird 152.0.1, released June 30, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-57963
- Priority: Routine
- CVSS: 6.5 (medium)
- EPSS: 0.0031
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jul 1, 2026
- Weakness: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-57963

## Description

An attacker who can send HTML chat messages (via Matrix or XMPP) can inject arbitrary styled content, phishing links, and CSS that manipulates the chat UI. This vulnerability was fixed in Thunderbird 152.0.1 and Thunderbird 140.12.1.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Windows apps | Mozilla Thunderbird (af) | 152.0.1 | [Mozilla Thunderbird (af) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.af-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (ar) | 152.0.1 | [Mozilla Thunderbird (ar) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ar-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (ast) | 152.0.1 | [Mozilla Thunderbird (ast) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ast-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (be) | 152.0.1 | [Mozilla Thunderbird (be) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.be-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (bg) | 152.0.1 | [Mozilla Thunderbird (bg) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.bg-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (br) | 152.0.1 | [Mozilla Thunderbird (br) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.br-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (ca) | 152.0.1 | [Mozilla Thunderbird (ca) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ca-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (cak) | 152.0.1 | [Mozilla Thunderbird (cak) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.cak-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (cs) | 152.0.1 | [Mozilla Thunderbird (cs) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.cs-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (cy) | 152.0.1 | [Mozilla Thunderbird (cy) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.cy-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (da) | 152.0.1 | [Mozilla Thunderbird (da) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.da-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (de) | 152.0.1 | [Mozilla Thunderbird (de) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.de-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (dsb) | 152.0.1 | [Mozilla Thunderbird (dsb) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.dsb-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (el) | 152.0.1 | [Mozilla Thunderbird (el) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.el-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (en-CA) | 152.0.1 | [Mozilla Thunderbird (en-CA) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.en-ca-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (en-GB) | 152.0.1 | [Mozilla Thunderbird (en-GB) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.en-gb-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (en-US) | 152.0.1 | [Mozilla Thunderbird (en-US) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (es-AR) | 152.0.1 | [Mozilla Thunderbird (es-AR) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.es-ar-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (es-ES) | 152.0.1 | [Mozilla Thunderbird (es-ES) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.es-es-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (es-MX) | 152.0.1 | [Mozilla Thunderbird (es-MX) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.es-mx-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (et) | 152.0.1 | [Mozilla Thunderbird (et) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.et-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (eu) | 152.0.1 | [Mozilla Thunderbird (eu) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.eu-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (fi) | 152.0.1 | [Mozilla Thunderbird (fi) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.fi-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (fr) | 152.0.1 | [Mozilla Thunderbird (fr) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.fr-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (fy-NL) | 152.0.1 | [Mozilla Thunderbird (fy-NL) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.fy-nl-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (ga-IE) | 152.0.1 | [Mozilla Thunderbird (ga-IE) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ga-ie-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (gd) | 152.0.1 | [Mozilla Thunderbird (gd) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.gd-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (gl) | 152.0.1 | [Mozilla Thunderbird (gl) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.gl-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (he) | 152.0.1 | [Mozilla Thunderbird (he) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.he-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (hr) | 152.0.1 | [Mozilla Thunderbird (hr) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hr-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (hsb) | 152.0.1 | [Mozilla Thunderbird (hsb) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hsb-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (hu) | 152.0.1 | [Mozilla Thunderbird (hu) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hu-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (hy-AM) | 152.0.1 | [Mozilla Thunderbird (hy-AM) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.hy-am-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (id) | 152.0.1 | [Mozilla Thunderbird (id) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.id-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (is) | 152.0.1 | [Mozilla Thunderbird (is) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.is-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (it) | 152.0.1 | [Mozilla Thunderbird (it) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.it-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (ja) | 152.0.1 | [Mozilla Thunderbird (ja) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ja-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (ka) | 152.0.1 | [Mozilla Thunderbird (ka) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ka-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (kab) | 152.0.1 | [Mozilla Thunderbird (kab) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.kab-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (kk) | 152.0.1 | [Mozilla Thunderbird (kk) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.kk-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (ko) | 152.0.1 | [Mozilla Thunderbird (ko) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ko-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (lt) | 152.0.1 | [Mozilla Thunderbird (lt) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.lt-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (lv) | 152.0.1 | [Mozilla Thunderbird (lv) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.lv-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (ms) | 152.0.1 | [Mozilla Thunderbird (ms) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ms-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (nb-NO) | 152.0.1 | [Mozilla Thunderbird (nb-NO) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.nb-no-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (nl) | 152.0.1 | [Mozilla Thunderbird (nl) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.nl-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (nn-NO) | 152.0.1 | [Mozilla Thunderbird (nn-NO) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.nn-no-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (pa-IN) | 152.0.1 | [Mozilla Thunderbird (pa-IN) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pa-in-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (pl) | 152.0.1 | [Mozilla Thunderbird (pl) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pl-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (pt-BR) | 152.0.1 | [Mozilla Thunderbird (pt-BR) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pt-br-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (pt-PT) | 152.0.1 | [Mozilla Thunderbird (pt-PT) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.pt-pt-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (rm) | 152.0.1 | [Mozilla Thunderbird (rm) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.rm-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (ro) | 152.0.1 | [Mozilla Thunderbird (ro) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ro-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (ru) | 152.0.1 | [Mozilla Thunderbird (ru) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.ru-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (sk) | 152.0.1 | [Mozilla Thunderbird (sk) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sk-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (sl) | 152.0.1 | [Mozilla Thunderbird (sl) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sl-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (sq) | 152.0.1 | [Mozilla Thunderbird (sq) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sq-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (sr) | 152.0.1 | [Mozilla Thunderbird (sr) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sr-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (sv-SE) | 152.0.1 | [Mozilla Thunderbird (sv-SE) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.sv-se-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (th) | 152.0.1 | [Mozilla Thunderbird (th) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.th-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (tr) | 152.0.1 | [Mozilla Thunderbird (tr) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.tr-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (uk) | 152.0.1 | [Mozilla Thunderbird (uk) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.uk-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (uz) | 152.0.1 | [Mozilla Thunderbird (uz) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.uz-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (vi) | 152.0.1 | [Mozilla Thunderbird (vi) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.vi-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (zh-CN) | 152.0.1 | [Mozilla Thunderbird (zh-CN) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.zh-cn-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird (zh-TW) | 152.0.1 | [Mozilla Thunderbird (zh-TW) 152.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.zh-tw-152.0.1.md) | Jul 1, 2026 |
| Windows apps | Mozilla Thunderbird ESR (af) | 153.0.1 | [Mozilla Thunderbird ESR (af) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.af-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (ar) | 153.0.1 | [Mozilla Thunderbird ESR (ar) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ar-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (ast) | 153.0.1 | [Mozilla Thunderbird ESR (ast) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ast-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (be) | 153.0.1 | [Mozilla Thunderbird ESR (be) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.be-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (bg) | 153.0.1 | [Mozilla Thunderbird ESR (bg) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.bg-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (br) | 153.0.1 | [Mozilla Thunderbird ESR (br) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.br-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (ca) | 153.0.1 | [Mozilla Thunderbird ESR (ca) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ca-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (cak) | 153.0.1 | [Mozilla Thunderbird ESR (cak) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.cak-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (cs) | 153.0.1 | [Mozilla Thunderbird ESR (cs) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.cs-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (cy) | 153.0.1 | [Mozilla Thunderbird ESR (cy) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.cy-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (da) | 153.0.1 | [Mozilla Thunderbird ESR (da) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.da-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (de) | 153.0.1 | [Mozilla Thunderbird ESR (de) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.de-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (dsb) | 153.0.1 | [Mozilla Thunderbird ESR (dsb) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.dsb-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (el) | 153.0.1 | [Mozilla Thunderbird ESR (el) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.el-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (en-CA) | 153.0.1 | [Mozilla Thunderbird ESR (en-CA) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.en-ca-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (en-GB) | 153.0.1 | [Mozilla Thunderbird ESR (en-GB) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.en-gb-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (en-US) | 153.0.1 | [Mozilla Thunderbird ESR (en-US) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (es-AR) | 153.0.1 | [Mozilla Thunderbird ESR (es-AR) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.es-ar-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (es-ES) | 153.0.1 | [Mozilla Thunderbird ESR (es-ES) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.es-es-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (es-MX) | 153.0.1 | [Mozilla Thunderbird ESR (es-MX) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.es-mx-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (et) | 153.0.1 | [Mozilla Thunderbird ESR (et) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.et-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (eu) | 153.0.1 | [Mozilla Thunderbird ESR (eu) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.eu-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (fi) | 153.0.1 | [Mozilla Thunderbird ESR (fi) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.fi-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (fr) | 153.0.1 | [Mozilla Thunderbird ESR (fr) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.fr-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (fy-NL) | 153.0.1 | [Mozilla Thunderbird ESR (fy-NL) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.fy-nl-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (ga-IE) | 153.0.1 | [Mozilla Thunderbird ESR (ga-IE) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ga-ie-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (gd) | 153.0.1 | [Mozilla Thunderbird ESR (gd) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.gd-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (gl) | 153.0.1 | [Mozilla Thunderbird ESR (gl) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.gl-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (he) | 153.0.1 | [Mozilla Thunderbird ESR (he) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.he-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (hr) | 153.0.1 | [Mozilla Thunderbird ESR (hr) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.hr-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (hsb) | 153.0.1 | [Mozilla Thunderbird ESR (hsb) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.hsb-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (hu) | 153.0.1 | [Mozilla Thunderbird ESR (hu) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.hu-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (hy-AM) | 153.0.1 | [Mozilla Thunderbird ESR (hy-AM) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.hy-am-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (id) | 153.0.1 | [Mozilla Thunderbird ESR (id) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.id-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (is) | 153.0.1 | [Mozilla Thunderbird ESR (is) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.is-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (it) | 153.0.1 | [Mozilla Thunderbird ESR (it) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.it-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (ja) | 153.0.1 | [Mozilla Thunderbird ESR (ja) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ja-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (ka) | 153.0.1 | [Mozilla Thunderbird ESR (ka) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ka-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (kab) | 153.0.1 | [Mozilla Thunderbird ESR (kab) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.kab-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (kk) | 153.0.1 | [Mozilla Thunderbird ESR (kk) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.kk-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (ko) | 153.0.1 | [Mozilla Thunderbird ESR (ko) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ko-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (lt) | 153.0.1 | [Mozilla Thunderbird ESR (lt) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.lt-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (lv) | 153.0.1 | [Mozilla Thunderbird ESR (lv) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.lv-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (ms) | 153.0.1 | [Mozilla Thunderbird ESR (ms) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ms-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (nb-NO) | 153.0.1 | [Mozilla Thunderbird ESR (nb-NO) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.nb-no-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (nl) | 153.0.1 | [Mozilla Thunderbird ESR (nl) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.nl-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (nn-NO) | 153.0.1 | [Mozilla Thunderbird ESR (nn-NO) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.nn-no-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (pa-IN) | 153.0.1 | [Mozilla Thunderbird ESR (pa-IN) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.pa-in-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (pl) | 153.0.1 | [Mozilla Thunderbird ESR (pl) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.pl-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (pt-BR) | 153.0.1 | [Mozilla Thunderbird ESR (pt-BR) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.pt-br-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (pt-PT) | 153.0.1 | [Mozilla Thunderbird ESR (pt-PT) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.pt-pt-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (rm) | 153.0.1 | [Mozilla Thunderbird ESR (rm) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.rm-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (ro) | 153.0.1 | [Mozilla Thunderbird ESR (ro) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ro-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (ru) | 153.0.1 | [Mozilla Thunderbird ESR (ru) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.ru-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (sk) | 153.0.1 | [Mozilla Thunderbird ESR (sk) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sk-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (sl) | 153.0.1 | [Mozilla Thunderbird ESR (sl) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sl-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (sq) | 153.0.1 | [Mozilla Thunderbird ESR (sq) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sq-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (sr) | 153.0.1 | [Mozilla Thunderbird ESR (sr) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sr-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (sv-SE) | 153.0.1 | [Mozilla Thunderbird ESR (sv-SE) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.sv-se-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (th) | 153.0.1 | [Mozilla Thunderbird ESR (th) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.th-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (tr) | 153.0.1 | [Mozilla Thunderbird ESR (tr) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.tr-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (uk) | 153.0.1 | [Mozilla Thunderbird ESR (uk) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.uk-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (uz) | 153.0.1 | [Mozilla Thunderbird ESR (uz) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.uz-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (vi) | 153.0.1 | [Mozilla Thunderbird ESR (vi) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.vi-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (zh-CN) | 153.0.1 | [Mozilla Thunderbird ESR (zh-CN) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.zh-cn-153.0.1.md) | Jul 23, 2026 |
| Windows apps | Mozilla Thunderbird ESR (zh-TW) | 153.0.1 | [Mozilla Thunderbird ESR (zh-TW) 153.0.1](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird.esr.zh-tw-153.0.1.md) | Jul 23, 2026 |
| macOS | Mozilla Thunderbird | 152.0.1 | [Mozilla Thunderbird 152.0.1](https://patchblox.com/security/data/fix/macos/org.mozilla.thunderbird-152.0.1.md) | Jun 30, 2026 |
| Linux | thunderbird Debian 12.15 (bookworm) | 1:140.13.0esr-2~deb12u1 | [DEBIAN-CVE-2026-57963](https://patchblox.com/security/data/fix/linux/debian-cve-2026-57963.md) | Jul 1, 2026 |
| Linux | thunderbird Debian 13.5 (trixie) | 1:140.13.0esr-2~deb13u1 | [DEBIAN-CVE-2026-57963](https://patchblox.com/security/data/fix/linux/debian-cve-2026-57963.md) | Jul 1, 2026 |
| Linux | thunderbird Debian 14 | 1:140.13.0esr-1 | [DEBIAN-CVE-2026-57963](https://patchblox.com/security/data/fix/linux/debian-cve-2026-57963.md) | Jul 1, 2026 |

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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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