Zitat von MITs Forum am 11. September 2023, 0:00 Uhr

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.

References
https://bugzilla.mozilla.org/show_bug.cgi?id=1842030
https://www.mozilla.org/security/advisories/mfsa2023-34/
https://www.mozilla.org/security/advisories/mfsa2023-36/
https://www.mozilla.org/security/advisories/mfsa2023-38/