{"id":"CVE-2026-15719","state":"PUBLISHED","title":"Site isolation issue in the DOM: Navigation component","description":"We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw. This vulnerability was fixed in Firefox 152.0.6, Firefox ESR 115.38, Firefox ESR 140.13, and Thunderbird 140.13.","publishedAt":"2026-07-14T12:15:47.592Z","updatedAt":"2026-07-22T19:19:22.168Z","severity":{"score":5.4,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","source":"CISA-ADP"},"assigner":"mozilla","products":["Mozilla Firefox","Mozilla Thunderbird"],"affected":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"115.38","status":"unaffected","lessThanOrEqual":"115.*","versionType":"rpm"},{"version":"140.13","status":"unaffected","lessThanOrEqual":"140.*","versionType":"rpm"},{"version":"152.0.6","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"140.13","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]}],"references":["https://bugzilla.mozilla.org/show_bug.cgi?id=2043820","https://www.mozilla.org/security/advisories/mfsa2026-67/","https://www.mozilla.org/security/advisories/mfsa2026-69/","https://www.mozilla.org/security/advisories/mfsa2026-70/","https://www.mozilla.org/security/advisories/mfsa2026-72/"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:00.674Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/15xxx/CVE-2026-15719.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-15719","state":"PUBLISHED","datePublished":"2026-07-14T12:15:47.592Z","dateUpdated":"2026-07-22T19:19:22.168Z","assignerShortName":"mozilla","assignerOrgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateReserved":"2026-07-14T12:15:46.894Z"},"containers":{"cna":{"title":"Site isolation issue in the DOM: Navigation component","descriptions":[{"lang":"en","value":"We are aware that exploit code for this is public however we are not aware of any attacks in the wild abusing this flaw. This vulnerability was fixed in Firefox 152.0.6, Firefox ESR 115.38, Firefox ESR 140.13, and Thunderbird 140.13."}],"affected":[{"vendor":"Mozilla","product":"Firefox","versions":[{"version":"115.38","status":"unaffected","lessThanOrEqual":"115.*","versionType":"rpm"},{"version":"140.13","status":"unaffected","lessThanOrEqual":"140.*","versionType":"rpm"},{"version":"152.0.6","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]},{"vendor":"Mozilla","product":"Thunderbird","versions":[{"version":"140.13","status":"unaffected","lessThanOrEqual":"*","versionType":"rpm"}]}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2043820"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-67/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-69/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-70/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-72/"}],"providerMetadata":{"shortName":"mozilla","orgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","dateUpdated":"2026-07-22T19:19:22.168Z"},"credits":[{"lang":"en","value":"Atsushi Sada"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.4,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","integrityImpact":"LOW","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"NONE","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-07-14T13:32:24.747872Z","id":"CVE-2026-15719","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"type":"CWE","lang":"en","description":"CWE-noinfo Not enough information"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-14T13:33:56.522Z"}}]}}}