{"id":"MGASA-2026-0014","summary":"Updated thunderbird packages fix security vulnerabilities","details":"Mitigation bypass in the DOM: Security component. (CVE-2026-0877)\nSandbox escape due to incorrect boundary conditions in the Graphics:\nCanvasWebGL component. (CVE-2026-0878)\nSandbox escape due to incorrect boundary conditions in the Graphics\ncomponent. (CVE-2026-0879)\nSandbox escape due to integer overflow in the Graphics component.\n(CVE-2026-0880)\nUse-after-free in the IPC component. (CVE-2026-0882)\nSpoofing issue in the Downloads Panel component. (CVE-2025-14327)\nInformation disclosure in the Networking component. (CVE-2026-0883)\nUse-after-free in the JavaScript Engine component. (CVE-2026-0884)\nUse-after-free in the JavaScript: GC component. (CVE-2026-0885)\nIncorrect boundary conditions in the Graphics component. (CVE-2026-0886)\nClickjacking issue, information disclosure in the PDF Viewer component.\n(CVE-2026-0887)\nSpoofing issue in the DOM: Copy & Paste and Drag & Drop component.\n(CVE-2026-0890)\nMemory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7,\nFirefox 147 and Thunderbird 147. (CVE-2026-0891)\n","modified":"2026-04-16T00:08:53.017648107Z","published":"2026-01-20T03:25:41Z","upstream":["CVE-2025-14327","CVE-2026-0877","CVE-2026-0878","CVE-2026-0879","CVE-2026-0880","CVE-2026-0882","CVE-2026-0883","CVE-2026-0884","CVE-2026-0885","CVE-2026-0886","CVE-2026-0887","CVE-2026-0890","CVE-2026-0891"],"references":[{"type":"ADVISORY","url":"https://advisories.mageia.org/MGASA-2026-0014.html"},{"type":"REPORT","url":"https://bugs.mageia.org/show_bug.cgi?id=34993"},{"type":"WEB","url":"https://www.thunderbird.net/en-US/thunderbird/140.7.0esr/releasenotes/"},{"type":"ADVISORY","url":"https://www.mozilla.org/en-US/security/advisories/mfsa2026-05/"}],"affected":[{"package":{"name":"thunderbird","ecosystem":"Mageia:9","purl":"pkg:rpm/mageia/thunderbird?arch=source&distro=mageia-9"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"140.7.0-1.mga9"}]}],"ecosystem_specific":{"section":"core"},"database_specific":{"source":"https://advisories.mageia.org/MGASA-2026-0014.json"}},{"package":{"name":"thunderbird-l10n","ecosystem":"Mageia:9","purl":"pkg:rpm/mageia/thunderbird-l10n?arch=source&distro=mageia-9"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"140.7.0-1.mga9"}]}],"ecosystem_specific":{"section":"core"},"database_specific":{"source":"https://advisories.mageia.org/MGASA-2026-0014.json"}}],"schema_version":"1.7.5","credits":[{"name":"Mageia","contact":["https://wiki.mageia.org/en/Packages_Security_Team"],"type":"COORDINATOR"}]}