{"id":"CVE-2025-9866","state":"PUBLISHED","title":"Inappropriate implementation in Extensions in Google Chrome prior to 140.0.7339.80 allowed a remote attacker to bypass content security policy via a crafted HTML page. (Chromium se","description":"Inappropriate implementation in Extensions in Google Chrome prior to 140.0.7339.80 allowed a remote attacker to bypass content security policy via a crafted HTML page. (Chromium security severity: Medium)","publishedAt":"2025-09-03T16:17:48.331Z","updatedAt":"2026-02-26T17:49:45.418Z","severity":{"score":8.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"Chrome","products":["Google Chrome"],"affected":[{"vendor":"Google","product":"Chrome","versions":[{"version":"140.0.7339.80","status":"affected","lessThan":"140.0.7339.80","versionType":"custom"}]}],"references":["https://chromereleases.googleblog.com/2025/09/stable-channel-update-for-desktop.html","https://issues.chromium.org/issues/379337758"],"weaknesses":["CWE-693"],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/9xxx/CVE-2025-9866.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-9866","state":"PUBLISHED","datePublished":"2025-09-03T16:17:48.331Z","dateUpdated":"2026-02-26T17:49:45.418Z","assignerShortName":"Chrome","assignerOrgId":"ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28","dateReserved":"2025-09-02T18:36:22.551Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"Inappropriate implementation in Extensions in Google Chrome prior to 140.0.7339.80 allowed a remote attacker to bypass content security policy via a crafted HTML page. (Chromium security severity: Medium)"}],"affected":[{"vendor":"Google","product":"Chrome","versions":[{"version":"140.0.7339.80","status":"affected","lessThan":"140.0.7339.80","versionType":"custom"}]}],"references":[{"url":"https://chromereleases.googleblog.com/2025/09/stable-channel-update-for-desktop.html"},{"url":"https://issues.chromium.org/issues/379337758"}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Inappropriate implementation"}]}],"providerMetadata":{"shortName":"Chrome","orgId":"ebfee0ef-53dd-4cf3-9e2a-08a5bd7a7e28","dateUpdated":"2025-09-03T16:17:48.331Z"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":8.8,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"REQUIRED","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"id":"CVE-2025-9866","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2025-09-04T03:55:44.764735Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-693","lang":"en","type":"CWE","description":"CWE-693 Protection Mechanism Failure"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-26T17:49:45.418Z"}}]}}}