{"id":"CVE-2022-26387","state":"PUBLISHED","title":"When installing an add-on, Firefox verified the signature before prompting the user; but while the user was confirming the prompt, the underlying add-on file could have been modifi","description":"When installing an add-on, Firefox verified the signature before prompting the user; but while the user was confirming the prompt, the underlying add-on file could have been modified and Firefox would not have noticed. This vulnerability affects Firefox < 98, Firefox ESR < 91.7, and Thunderbird < 91.7.","publishedAt":"2022-12-22T00:00:00.000Z","updatedAt":"2025-04-15T20:10:42.269Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"mozilla","products":["Mozilla Firefox","Mozilla Firefox ESR","Mozilla Thunderbird"],"affected":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"unspecified","status":"affected","lessThan":"98","versionType":"custom"}]},{"vendor":"Mozilla","product":"Firefox ESR","versions":[{"version":"unspecified","status":"affected","lessThan":"91.7","versionType":"custom"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"unspecified","status":"affected","lessThan":"91.7","versionType":"custom"}]}],"references":["https://www.mozilla.org/security/advisories/mfsa2022-12/","https://www.mozilla.org/security/advisories/mfsa2022-10/","https://www.mozilla.org/security/advisories/mfsa2022-11/","https://bugzilla.mozilla.org/show_bug.cgi?id=1752979"],"weaknesses":["CWE-367"],"ingestedAt":"2026-10-29T19:49:49.689Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/26xxx/CVE-2022-26387.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2022-26387","state":"PUBLISHED","datePublished":"2022-12-22T00:00:00.000Z","dateUpdated":"2025-04-15T20:10:42.269Z","assignerShortName":"mozilla","assignerOrgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateReserved":"2022-03-03T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"When installing an add-on, Firefox verified the signature before prompting the user; but while the user was confirming the prompt, the underlying add-on file could have been modified and Firefox would not have noticed. This vulnerability affects Firefox < 98, Firefox ESR < 91.7, and Thunderbird < 91.7."}],"affected":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"unspecified","status":"affected","lessThan":"98","versionType":"custom"}]},{"vendor":"Mozilla","product":"Firefox ESR","versions":[{"version":"unspecified","status":"affected","lessThan":"91.7","versionType":"custom"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"unspecified","status":"affected","lessThan":"91.7","versionType":"custom"}]}],"references":[{"url":"https://www.mozilla.org/security/advisories/mfsa2022-12/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2022-10/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2022-11/"},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1752979"}],"problemTypes":[{"descriptions":[{"type":"text","lang":"en","description":"Time-of-check time-of-use bug when verifying add-on signatures"}]}],"providerMetadata":{"shortName":"mozilla","orgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateUpdated":"2022-12-22T00:00:00.000Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://www.mozilla.org/security/advisories/mfsa2022-12/","tags":["x_transferred"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2022-10/","tags":["x_transferred"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2022-11/","tags":["x_transferred"]},{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1752979","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T05:03:32.862Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"REQUIRED","attackComplexity":"HIGH","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2025-04-15T20:10:36.855650Z","id":"CVE-2022-26387","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-367","type":"CWE","lang":"en","description":"CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-04-15T20:10:42.269Z"}}]}}}