{"id":"CVE-2026-91749","title":"Use after free in Workers in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page","summary":"Use after free in Workers in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)","severity":"critical","cvss":9.6,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","cwe":["CWE-416"],"vendor":"Google","product":"Chrome","affected":["Chrome >= 153.0.8010.47 < 153.0.8010.47"],"published":"2026-09-15","updated":"2026-09-17","sourceUpdated":"2026-09-17T04:18:10.540","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-91749","references":[{"url":"https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0541751186.html","label":"chrome-cve-admin@google.com"},{"url":"https://issues.chromium.org/issues/558456602","label":"chrome-cve-admin@google.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-91749.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-91749"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-91749"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-09-16T00:00:00+00:00"},"epss":0.00333,"epssPercentile":0.26713,"ingestedAt":"2026-09-15T21:44:50.654Z","slug":"CVE-2026-91749","body":"## Overview\n\nUse after free in Workers in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · updated 2026-09-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-91749.json)","depth":"midnight","depthScore":53,"depthScoreParts":{"impact":52.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":204686,"id":"CVE-2026-91749","ts":1789516021942,"field":"cvss","old":null,"new":"9.6"},{"seq":204685,"id":"CVE-2026-91749","ts":1789516021942,"field":"severity","old":"none","new":"critical"}]}