{"id":"CVE-2026-121138","title":"Observable discrepancy in CORS in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to obtain cross-origin data via a crafted HTML page","summary":"Observable discrepancy in CORS in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to obtain cross-origin data via a crafted HTML page. (Chromium security severity: Low)","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","cvssSource":"adp","cwe":["CWE-203"],"vendor":"Google","product":"Chrome","affected":["Chrome >= 157.0.8103.38 < 157.0.8103.38"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-04T20:38:55.798495Z"},"published":"2026-11-03","updated":"2026-11-04","sourceUpdated":"2026-11-04T20:41:15.848Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-121138","references":[{"url":"https://chromereleases.googleblog.com/2026/11/stable-channel-update-for-desktop.html"},{"url":"https://issues.chromium.org/issues/553249728"}],"tags":["cve.org"],"epss":0.00247,"epssPercentile":0.16101,"ingestedAt":"2026-11-05T21:36:00.567Z","slug":"CVE-2026-121138","body":"## Overview\n\nObservable discrepancy in CORS in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to obtain cross-origin data via a crafted HTML page. (Chromium security severity: Low)\n\n## Affected\n\n- `Chrome >= 157.0.8103.38 < 157.0.8103.38`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}