[ CVE-2026-103621 · Published 2 Oct 2026 ]

Vulnerability in Google Chrome

CVSS 4.3 EPSS <1%1 agency advisoryNo fix listed yet

[ Description ]Official description

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)

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

BSI CERT-Bund4 Oct 2026WID-SEC-2026-3737

Google Chrome / Microsoft Edge: Multiple vulnerabilities Translated from German
CVE-2026-103628CVE-2026-103621CVE-2026-103631+8 more CVEs

[ References ]References

chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop.htmlRelease NotesVendor Advisory
issues.chromium.org/issues/556268833Permissions Required

[ Description ]Official description

[ Fixes ]Fixes and patches

[ Advisories ]Government CERT advisories

Google Chrome / Microsoft Edge: Multiple vulnerabilities Translated from German

[ References ]References