A race condition could lead to a cross-origin container obtaining permissions of the top-level origin. This vulnerability affects Firefox < 128, Firefox ESR < 115.13, Thunderbird < 115.13, and Thunderbird < 128.CreditsAndreas FarreReferenceshttps://bugzilla.mozilla.org/show_bug.cgi?id=1890748https://www.mozilla.org/security/advisories/mfsa2024-29/https://www.mozilla.org/security/advisories/mfsa2024-30/https://www.mozilla.org/security/advisories/mfsa2024-31/https://www.mozilla.org/security/advisories/mfsa2024-32/
