{"schemaVersion":3,"id":"MGASA-2026-0013","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Updated nss & firefox packages fix security vulnerabilities\n\nMitigation 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)","dates":{"published":"2026-01-20T03:25:41.000Z","modified":"2026-04-16T04:43:31.017Z","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":"firefox","name":"firefox","label":"firefox","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/firefox","purlType":"rpm","versions":[{"text":"< 140.7.0-1.mga9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 140.7.0-1.mga9","eol":null,"hubHref":null},{"vendor":"mageia","product":"firefox-l10n","name":"firefox-l10n","label":"firefox-l10n","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/firefox-l10n","purlType":"rpm","versions":[{"text":"< 140.7.0-1.mga9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 140.7.0-1.mga9","eol":null,"hubHref":null},{"vendor":"mageia","product":"nss","name":"nss","label":"nss","ecosystem":"Mageia","cpePart":null,"purl":"pkg:rpm/mageia/nss","purlType":"rpm","versions":[{"text":"< 3.120.0-1.mga9","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.120.0-1.mga9","eol":null,"hubHref":null}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://advisories.mageia.org/MGASA-2026-0013.html","label":"advisories.mageia.org/MGASA-2026-0013.html","hostname":"advisories.mageia.org","tags":["Advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=34987","label":"bugs.mageia.org/show_bug.cgi?id=34987","hostname":"bugs.mageia.org","tags":["REPORT"]},{"url":"https://firefox-source-docs.mozilla.org/security/nss/releases/nss_3_120.html","label":"firefox-source-docs.mozilla.org/security/nss/releases/nss_3_120.html","hostname":"firefox-source-docs.mozilla.org","tags":["WEB"]},{"url":"https://www.firefox.com/en-US/firefox/140.7.0/releasenotes/","label":"www.firefox.com/en-US/firefox/140.7.0/releasenotes/","hostname":"www.firefox.com","tags":["WEB"]},{"url":"https://www.mozilla.org/en-US/security/advisories/mfsa2026-03/","label":"www.mozilla.org/en-US/security/advisories/mfsa2026-03/","hostname":"www.mozilla.org","tags":["Advisory"]}],"lineage":{"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"],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-01-20T03:25:41.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-16T04:43:31.017Z","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":"2026-10-21T00:06:26.067Z","stale":false,"partial":false}}