# CVE-2022-42927: Mozilla Firefox and 4 others: Origin Validation Error CVE-2022-42927 is fixed in 13 products on 2 platforms, first by Mozilla Firefox (en-US) 106.0, released October 19, 2022. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2022-42927 - Priority: High - CVSS: 8.8 (Medium) - EPSS: 0.0045 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Oct 19, 2022 - Weakness: CWE-346: Origin Validation Error - Vendor advisory: https://nvd.nist.gov/vuln/detail/CVE-2022-42927 ## Description A same-origin policy violation could have allowed the theft of cross-origin URL entries, leaking the result of a redirect, via `performance.getEntries()`. This vulnerability affects Firefox < 106, Firefox ESR < 102.4, and Thunderbird < 102.4. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Windows apps | Mozilla Firefox (en-US) | 106.0 | [Mozilla Firefox (en-US) 106.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox-106.0.md) | Oct 19, 2022 | | Windows apps | Mozilla Firefox ESR (en-US) | 115.4.0 | [Mozilla Firefox ESR (en-US) 115.4.0](https://patchblox.com/security/data/fix/windows-app/mozilla.firefox.esr-115.4.0.md) | Oct 17, 2023 | | Windows apps | Mozilla Thunderbird (en-US) | 102.6.0 | [Mozilla Thunderbird (en-US) 102.6.0](https://patchblox.com/security/data/fix/windows-app/mozilla.thunderbird-102.6.0.md) | Dec 12, 2022 | | Linux | firefox RHEL 8 | 0:102.4.0-1.el8_6 | [RHSA-2022:7070](https://patchblox.com/security/data/fix/linux/rhsa-2022-7070.md) | Oct 20, 2022 | | Linux | firefox RHEL 9 | 0:102.4.0-1.el9_0 | [RHSA-2022:7071](https://patchblox.com/security/data/fix/linux/rhsa-2022-7071.md) | Oct 20, 2022 | | Linux | firefox Ubuntu 18.04.6 LTS (bionic) | 106.0.2+build1-0ubuntu0.18.04.1 | [firefox 106.0.2+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-106.0.2-build1-0ubuntu0.18.04.1.md) | Oct 26, 2022 | | Linux | firefox Ubuntu 20.04 LTS (focal) | 106.0.2+build1-0ubuntu0.20.04.1 | [firefox 106.0.2+build1-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-106.0.2-build1-0ubuntu0.20.04.1.md) | Oct 26, 2022 | | Linux | firefox almalinux 8 | 102.4.0-1.el8_6.alma | [ALSA-2022:7070](https://patchblox.com/security/data/fix/linux/alsa-2022-7070.md) | Oct 20, 2022 | | Linux | firefox almalinux 9 | 102.4.0-1.el9_0.alma | [ALSA-2022:7071](https://patchblox.com/security/data/fix/linux/alsa-2022-7071.md) | Oct 20, 2022 | | Linux | firefox ol 8 | 0:102.4.0-1.0.1.el8_6 | [ELSA-2022-7070](https://patchblox.com/security/data/fix/linux/elsa-2022-7070.md) | Oct 26, 2022 | | Linux | firefox ol 9 | 0:102.4.0-1.0.1.el9_0 | [ELSA-2022-7071](https://patchblox.com/security/data/fix/linux/elsa-2022-7071.md) | Oct 21, 2022 | | Linux | firefox rocky 8 | 0:102.4.0-1.el8_6 | [RLSA-2022:7070](https://patchblox.com/security/data/fix/linux/rlsa-2022-7070.md) | Oct 20, 2022 | | Linux | firefox-esr Debian 11.6 (bullseye) | 102.4.0esr-1~deb11u1 | [DSA-5259-1](https://patchblox.com/security/data/fix/linux/dsa-5259-1.md) | Oct 19, 2022 | | Linux | firefox-esr Debian 12.15 (bookworm) | 102.4.0esr-1 | [DEBIAN-CVE-2022-42927](https://patchblox.com/security/data/fix/linux/debian-cve-2022-42927.md) | Dec 22, 2022 | | Linux | firefox-esr Debian 13.5 (trixie) | 102.4.0esr-1 | [DEBIAN-CVE-2022-42927](https://patchblox.com/security/data/fix/linux/debian-cve-2022-42927.md) | Dec 22, 2022 | | Linux | firefox-esr Debian 14 | 102.4.0esr-1 | [DEBIAN-CVE-2022-42927](https://patchblox.com/security/data/fix/linux/debian-cve-2022-42927.md) | Dec 22, 2022 | | Linux | firefox-geckodriver Ubuntu 18.04.6 LTS (bionic) | 106.0.2+build1-0ubuntu0.18.04.1 | [firefox-geckodriver 106.0.2+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-geckodriver-106.0.2-build1-0ubuntu0.18.04.1.md) | Oct 26, 2022 | | Linux | firefox-geckodriver Ubuntu 20.04 LTS (focal) | 106.0.2+build1-0ubuntu0.20.04.1 | [firefox-geckodriver 106.0.2+build1-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-geckodriver-106.0.2-build1-0ubuntu0.20.04.1.md) | Oct 26, 2022 | | Linux | firefox-mozsymbols Ubuntu 18.04.6 LTS (bionic) | 106.0.2+build1-0ubuntu0.18.04.1 | [firefox-mozsymbols 106.0.2+build1-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-firefox-mozsymbols-106.0.2-build1-0ubuntu0.18.04.1.md) | Oct 26, 2022 | | Linux | firefox-mozsymbols Ubuntu 20.04 LTS (focal) | 106.0.2+build1-0ubuntu0.20.04.1 | [firefox-mozsymbols 106.0.2+build1-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-firefox-mozsymbols-106.0.2-build1-0ubuntu0.20.04.1.md) | Oct 26, 2022 | | Linux | thunderbird Debian 11.6 (bullseye) | 1:102.4.0-1~deb11u1 | [DSA-5262-1](https://patchblox.com/security/data/fix/linux/dsa-5262-1.md) | Oct 27, 2022 | | Linux | thunderbird Debian 12.15 (bookworm) | 1:102.4.0-1 | [DEBIAN-CVE-2022-42927](https://patchblox.com/security/data/fix/linux/debian-cve-2022-42927.md) | Dec 22, 2022 | | Linux | thunderbird Debian 13.5 (trixie) | 1:102.4.0-1 | [DEBIAN-CVE-2022-42927](https://patchblox.com/security/data/fix/linux/debian-cve-2022-42927.md) | Dec 22, 2022 | | Linux | thunderbird Debian 14 | 1:102.4.0-1 | [DEBIAN-CVE-2022-42927](https://patchblox.com/security/data/fix/linux/debian-cve-2022-42927.md) | Dec 22, 2022 | | Linux | thunderbird RHEL 8 | 0:102.4.0-1.el8_6 | [RHSA-2022:7190](https://patchblox.com/security/data/fix/linux/rhsa-2022-7190.md) | Oct 25, 2022 | | Linux | thunderbird RHEL 9 | 0:102.4.0-1.el9_0 | [RHSA-2022:7178](https://patchblox.com/security/data/fix/linux/rhsa-2022-7178.md) | Oct 25, 2022 | | Linux | thunderbird Ubuntu 18.04.6 LTS (bionic) | 1:102.4.2+build2-0ubuntu0.18.04.1 | [thunderbird 1:102.4.2+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-1-102.4.2-build2-0ubuntu0.18.04.1.md) | Oct 26, 2022 | | Linux | thunderbird Ubuntu 20.04 LTS (focal) | 1:102.4.2+build2-0ubuntu0.20.04.1 | [thunderbird 1:102.4.2+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-thunderbird-1-102.4.2-build2-0ubuntu0.20.04.1.md) | Oct 26, 2022 | | Linux | thunderbird Ubuntu 22.04.1 LTS (jammy) | 1:102.4.2+build2-0ubuntu0.22.04.1 | [thunderbird 1:102.4.2+build2-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-thunderbird-1-102.4.2-build2-0ubuntu0.22.04.1.md) | Oct 26, 2022 | | Linux | thunderbird almalinux 8 | 102.4.0-1.el8_6.alma | [ALSA-2022:7190](https://patchblox.com/security/data/fix/linux/alsa-2022-7190.md) | Oct 25, 2022 | | Linux | thunderbird almalinux 9 | 102.4.0-1.el9_0.alma | [ALSA-2022:7178](https://patchblox.com/security/data/fix/linux/alsa-2022-7178.md) | Oct 25, 2022 | | Linux | thunderbird ol 8 | 0:102.4.0-1.0.1.el8_6 | [ELSA-2022-7190](https://patchblox.com/security/data/fix/linux/elsa-2022-7190.md) | Oct 27, 2022 | | Linux | thunderbird ol 9 | 0:102.4.0-1.el9_0 | [ELSA-2022-7178](https://patchblox.com/security/data/fix/linux/elsa-2022-7178.md) | Oct 27, 2022 | | Linux | thunderbird rocky 8 | 0:102.4.0-1.el8_6 | [RLSA-2022:7190](https://patchblox.com/security/data/fix/linux/rlsa-2022-7190.md) | Oct 25, 2022 | | Linux | thunderbird-gnome-support Ubuntu 18.04.6 LTS (bionic) | 1:102.4.2+build2-0ubuntu0.18.04.1 | [thunderbird-gnome-support 1:102.4.2+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-gnome-support-1-102.4.2-build2-0ubuntu0.18.04.1.md) | Oct 26, 2022 | | Linux | thunderbird-gnome-support Ubuntu 20.04 LTS (focal) | 1:102.4.2+build2-0ubuntu0.20.04.1 | [thunderbird-gnome-support 1:102.4.2+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-thunderbird-gnome-support-1-102.4.2-build2-0ubuntu0.20.04.1.md) | Oct 26, 2022 | | Linux | thunderbird-gnome-support Ubuntu 22.04.1 LTS (jammy) | 1:102.4.2+build2-0ubuntu0.22.04.1 | [thunderbird-gnome-support 1:102.4.2+build2-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-thunderbird-gnome-support-1-102.4.2-build2-0ubuntu0.22.04.1.md) | Oct 26, 2022 | | Linux | thunderbird-mozsymbols Ubuntu 18.04.6 LTS (bionic) | 1:102.4.2+build2-0ubuntu0.18.04.1 | [thunderbird-mozsymbols 1:102.4.2+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-thunderbird-mozsymbols-1-102.4.2-build2-0ubuntu0.18.04.1.md) | Oct 26, 2022 | | Linux | thunderbird-mozsymbols Ubuntu 20.04 LTS (focal) | 1:102.4.2+build2-0ubuntu0.20.04.1 | [thunderbird-mozsymbols 1:102.4.2+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-thunderbird-mozsymbols-1-102.4.2-build2-0ubuntu0.20.04.1.md) | Oct 26, 2022 | | Linux | thunderbird-mozsymbols Ubuntu 22.04.1 LTS (jammy) | 1:102.4.2+build2-0ubuntu0.22.04.1 | [thunderbird-mozsymbols 1:102.4.2+build2-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-thunderbird-mozsymbols-1-102.4.2-build2-0ubuntu0.22.04.1.md) | Oct 26, 2022 | | Linux | xul-ext-calendar-timezones Ubuntu 18.04.6 LTS (bionic) | 1:102.4.2+build2-0ubuntu0.18.04.1 | [xul-ext-calendar-timezones 1:102.4.2+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-calendar-timezones-1-102.4.2-build2-0ubuntu0.18.04.1.md) | Oct 26, 2022 | | Linux | xul-ext-calendar-timezones Ubuntu 20.04 LTS (focal) | 1:102.4.2+build2-0ubuntu0.20.04.1 | [xul-ext-calendar-timezones 1:102.4.2+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-xul-ext-calendar-timezones-1-102.4.2-build2-0ubuntu0.20.04.1.md) | Oct 26, 2022 | | Linux | xul-ext-calendar-timezones Ubuntu 22.04.1 LTS (jammy) | 1:102.4.2+build2-0ubuntu0.22.04.1 | [xul-ext-calendar-timezones 1:102.4.2+build2-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xul-ext-calendar-timezones-1-102.4.2-build2-0ubuntu0.22.04.1.md) | Oct 26, 2022 | | Linux | xul-ext-gdata-provider Ubuntu 18.04.6 LTS (bionic) | 1:102.4.2+build2-0ubuntu0.18.04.1 | [xul-ext-gdata-provider 1:102.4.2+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-gdata-provider-1-102.4.2-build2-0ubuntu0.18.04.1.md) | Oct 26, 2022 | | Linux | xul-ext-gdata-provider Ubuntu 20.04 LTS (focal) | 1:102.4.2+build2-0ubuntu0.20.04.1 | [xul-ext-gdata-provider 1:102.4.2+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-xul-ext-gdata-provider-1-102.4.2-build2-0ubuntu0.20.04.1.md) | Oct 26, 2022 | | Linux | xul-ext-gdata-provider Ubuntu 22.04.1 LTS (jammy) | 1:102.4.2+build2-0ubuntu0.22.04.1 | [xul-ext-gdata-provider 1:102.4.2+build2-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xul-ext-gdata-provider-1-102.4.2-build2-0ubuntu0.22.04.1.md) | Oct 26, 2022 | | Linux | xul-ext-lightning Ubuntu 18.04.6 LTS (bionic) | 1:102.4.2+build2-0ubuntu0.18.04.1 | [xul-ext-lightning 1:102.4.2+build2-0ubuntu0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-xul-ext-lightning-1-102.4.2-build2-0ubuntu0.18.04.1.md) | Oct 26, 2022 | | Linux | xul-ext-lightning Ubuntu 20.04 LTS (focal) | 1:102.4.2+build2-0ubuntu0.20.04.1 | [xul-ext-lightning 1:102.4.2+build2-0ubuntu0.20.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-xul-ext-lightning-1-102.4.2-build2-0ubuntu0.20.04.1.md) | Oct 26, 2022 | | Linux | xul-ext-lightning Ubuntu 22.04.1 LTS (jammy) | 1:102.4.2+build2-0ubuntu0.22.04.1 | [xul-ext-lightning 1:102.4.2+build2-0ubuntu0.22.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-xul-ext-lightning-1-102.4.2-build2-0ubuntu0.22.04.1.md) | Oct 26, 2022 | --- Data as of 2026-11-08T13:06:02Z UTC. 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