{"id":"CVE-2026-103621","title":"Integer overflow in Compositing in Google Chrome prior to 154.0.8037.97 allowed a remote attacker to leak cross-origin data via a crafted HTML page","summary":"Integer overflow in Compositing in Google Chrome prior to 154.0.8037.97 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","cwe":["CWE-190"],"vendor":"google","product":"chrome","affected":["chrome < 154.0.8037.97"],"patched":["chrome 154.0.8037.97"],"published":"2026-10-02","updated":"2026-10-05","sourceUpdated":"2026-10-05T15:05:56.107","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-103621","references":[{"url":"https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop.html","label":"chrome-cve-admin@google.com"},{"url":"https://issues.chromium.org/issues/556268833","label":"chrome-cve-admin@google.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-103621.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-103621"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-103621"}],"tags":["nvd","cve.org","csaf","vex","red-hat","score-dispute"],"epss":0.00202,"epssPercentile":0.09981,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-03T15:42:01.325663Z"},"ingestedAt":"2026-10-02T16:22:59.521Z","scores":{"nvd":4.3,"vendor":6.5},"slug":"CVE-2026-103621","body":"## Overview\n\nInteger overflow in Compositing in Google Chrome prior to 154.0.8037.97 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)\n\n## Affected\n\n- `chrome < 154.0.8037.97`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `chrome 154.0.8037.97`\n\n## Vendor advisories\n\n- **Red Hat VEX** · updated 2026-10-05 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-103621.json)","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":215339,"id":"CVE-2026-103621","ts":1791046164276,"field":"cvss","old":null,"new":"4.3"},{"seq":215338,"id":"CVE-2026-103621","ts":1791046164276,"field":"severity","old":"none","new":"medium"}]}