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When checking if the Browsing Context had been discarded in `HttpBaseChannel`, if the load group was not available then it was assumed to have already been discarded which was not always the case for private channels after the private session had ended. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade firefoxUpgrade firefox-x11Upgrade thunderbird | Sep 7, 2023 | Sep 4, 2023 |
| Alpine Linux | — | Upgrade thunderbirdUpgrade firefoxUpgrade firefox-esr | Aug 22, 2024 | Sep 11, 2023 |
| Centos_linux | — | Upgrade firefoxUpgrade thunderbirdUpgrade firefox-debuginfoUpgrade thunderbird-debuginfo | Sep 5, 2023 | Sep 4, 2023 |
| Debian | — | Upgrade thunderbirdUpgrade firefox-esr | Jul 27, 2026 | Jul 27, 2026 |
| Gentoo Linux | — | Upgrade mail-client/thunderbird-bin.Upgrade mail-client/thunderbird. | Feb 21, 2024 | Sep 11, 2023 |
| Mfsa2023 34 | — | Upgrade to Mozilla Firefox version 117.0Upgrade to the latest version of Mozilla Firefox | Aug 30, 2023 | Aug 29, 2023 |
| Mfsa2023 36 | — | Upgrade to Mozilla Firefox ESR version 115.2Upgrade to the latest version of Mozilla Firefox | Aug 30, 2023 | Aug 29, 2023 |
| Mozilla Thunderbird | — | Upgrade to Mozilla Thunderbird version 115.2Upgrade to the latest version of Mozilla Thunderbird | Sep 5, 2023 | Aug 29, 2023 |
| Oracle_linux | — | Upgrade firefoxUpgrade thunderbirdUpgrade firefox-x11 | May 21, 2024 | Aug 29, 2023 |
| Redhat_linux | — | Upgrade firefox-x11Upgrade thunderbirdUpgrade thunderbird-debugsourceUpgrade firefox-debugsourceNo solution existsUpgrade thunderbird-debuginfoUpgrade firefox-debuginfoUpgrade firefox | Sep 5, 2023 | Sep 4, 2023 |
| Rocky_linux | — | Upgrade thunderbirdUpgrade firefox-debuginfoUpgrade firefox-debugsourceUpgrade thunderbird-debugsourceUpgrade thunderbird-debuginfoUpgrade firefox | Mar 5, 2024 | Sep 11, 2023 |
| Suse | — | Upgrade MozillaThunderbird-translations-commonUpgrade mozillafirefox-branding-upstreamUpgrade MozillaFirefoxUpgrade MozillaFirefox-develUpgrade MozillaFirefox-translations-otherUpgrade MozillaFirefox-translations-commonUpgrade MozillaThunderbird-translations-otherUpgrade MozillaThunderbird | Sep 6, 2023 | Sep 5, 2023 |
| Ubuntu | — | Upgrade thunderbirdUpgrade firefox | Aug 31, 2023 | Aug 30, 2023 |
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