{"schemaVersion":3,"id":"MGASA-2026-0243","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Updated thunderbird thunderbird-l10n packages fix security vulnerabilities\n\nThe updated packages fix security vulnerabilities:\nPrivilege escalation in the Graphics: WebRender component.\n(CVE-2026-12289)\nMemory safety bug fixed in Thunderbird ESR 140.12. (CVE-2026-12290)\nUse-after-free in the Networking: HTTP component. (CVE-2026-12291)\nIncorrect boundary conditions in the Web Audio component.\n(CVE-2026-12292)\nSandbox escape in the DOM: Workers component. (CVE-2026-12294)\nSandbox escape in the DOM: Navigation component. (CVE-2026-12295)\nMemory safety bug fixed in Thunderbird ESR 140.12. (CVE-2026-12298)\nSandbox escape in the Security: Process Sandboxing component.\n(CVE-2026-12296)\nSandbox escape due to incorrect boundary conditions in the Networking\ncomponent. (CVE-2026-12297)\nJIT miscompilation in the DOM: Core & HTML component. (CVE-2026-12299)\nMemory safety bug fixed in Thunderbird ESR 140.12. (CVE-2026-12329)\nMitigation bypass in the DOM: Security component. (CVE-2026-12302)\nSame-origin policy bypass in the Networking: Cookies component.\n(CVE-2026-12304)\nMemory safety bug fixed in Thunderbird ESR 140.12. (CVE-2026-12305)\nMemory safety bug fixed in Thunderbird ESR 140.12. (CVE-2026-12306)\nMemory safety bug fixed in Thunderbird ESR 140.12. (CVE-2026-12307)\nMemory safety bug fixed in Thunderbird ESR 140.12. (CVE-2026-12308)\nMemory safety bug fixed in Thunderbird ESR 140.12. (CVE-2026-12309)\nMemory safety bug fixed in Thunderbird ESR 140.12. (CVE-2026-12310)\nInformation disclosure, sandbox escape in the Security: Process\nSandboxing component. (CVE-2026-12311)\nMemory safety bug fixed in Thunderbird ESR 140.12. (CVE-2026-12312)\nInformation disclosure, sandbox escape in the Security: Process\nSandboxing component. (CVE-2026-12313)\nMemory safety bug fixed in Thunderbird ESR 140.12. (CVE-2026-12314)\nMitigation bypass in the DOM: Security component. (CVE-2026-12315)\nIncorrect boundary conditions in the Internationalization component.\n(CVE-2026-12330)\nIncorrect boundary conditions in the Graphics: CanvasWebGL component.\n(CVE-2026-12324)\nDenial-of-service in the Graphics: ImageLib component. (CVE-2026-12325)\nMemory safety bugs fixed in Firefox ESR 140.12, Thunderbird ESR 140.12,\nFirefox 152 and Thunderbird 152. (CVE-2026-12327)\nMemory safety bugs fixed in Firefox ESR 115.37, Firefox ESR 140.12,\nThunderbird ESR 140.12, Firefox 152 and Thunderbird 152.\n(CVE-2026-12328)\nDenial-of-service via malicious LDAP address-book server.\n(CVE-2026-57962)\nChat UI manipulation by injection. (CVE-2026-57963)","dates":{"published":"2026-07-13T21:24:46.000Z","modified":"2026-07-13T21:35:16.586Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"mageia","product":"thunderbird","name":"thunderbird","label":"thunderbird","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/thunderbird","purlType":"rpm","versions":[{"text":"< 140.12.1-1.mga10","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 140.12.1-1.mga10","eol":null,"hubHref":null},{"vendor":"mageia","product":"thunderbird-l10n","name":"thunderbird-l10n","label":"thunderbird-l10n","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/thunderbird-l10n","purlType":"rpm","versions":[{"text":"< 140.12.1-1.mga10","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 140.12.1-1.mga10","eol":null,"hubHref":null},{"vendor":"mageia","product":"thunderbird","name":"thunderbird","label":"thunderbird","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/thunderbird","purlType":"rpm","versions":[{"text":"< 140.12.1-1.mga9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 140.12.1-1.mga9","eol":null,"hubHref":null},{"vendor":"mageia","product":"thunderbird-l10n","name":"thunderbird-l10n","label":"thunderbird-l10n","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/thunderbird-l10n","purlType":"rpm","versions":[{"text":"< 140.12.1-1.mga9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 140.12.1-1.mga9","eol":null,"hubHref":null}],"affectedCount":4,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://advisories.mageia.org/MGASA-2026-0243.html","label":"advisories.mageia.org/MGASA-2026-0243.html","hostname":"advisories.mageia.org","tags":["Advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=35716","label":"bugs.mageia.org/show_bug.cgi?id=35716","hostname":"bugs.mageia.org","tags":["REPORT"]},{"url":"https://www.thunderbird.net/en-US/thunderbird/140.12.0esr/releasenotes/","label":"www.thunderbird.net/en-US/thunderbird/140.12.0esr/releasenotes/","hostname":"www.thunderbird.net","tags":["WEB"]},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2026-61/","label":"www.mozilla.org/en-US/security/advisories/mfsa2026-61/","hostname":"www.mozilla.org","tags":["Advisory"]},{"url":"https://www.thunderbird.net/en-US/thunderbird/140.12.1esr/releasenotes/","label":"www.thunderbird.net/en-US/thunderbird/140.12.1esr/releasenotes/","hostname":"www.thunderbird.net","tags":["WEB"]},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2026-64/","label":"www.mozilla.org/en-US/security/advisories/mfsa2026-64/","hostname":"www.mozilla.org","tags":["Advisory"]}],"lineage":{"upstream":["CVE-2026-12289","CVE-2026-12290","CVE-2026-12291","CVE-2026-12292","CVE-2026-12294","CVE-2026-12295","CVE-2026-12296","CVE-2026-12297","CVE-2026-12298","CVE-2026-12299","CVE-2026-12302","CVE-2026-12304","CVE-2026-12305","CVE-2026-12306","CVE-2026-12307","CVE-2026-12308","CVE-2026-12309","CVE-2026-12310","CVE-2026-12311","CVE-2026-12312","CVE-2026-12313","CVE-2026-12314","CVE-2026-12315","CVE-2026-12324","CVE-2026-12325","CVE-2026-12327","CVE-2026-12328","CVE-2026-12329","CVE-2026-12330","CVE-2026-57962","CVE-2026-57963"],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-07-13T21:24:46.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-07-13T21:35:16.586Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T05:41:52.328Z","stale":false,"partial":false}}