GoogleCVE-2026-103631

Google Chrome: buffer overflow

CVE-2026-103631 · Published Oct 2, 2026 · updated Oct 6, 2026

High8.8

Fix: upgrade to 154.0.8037.97 or later

Buffer overflow in WebRTC in Google Chrome prior to 154.0.8037.97 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

Affected versions

Package	Affected	Fixed in
Chrome Product	>= 154.0.8037.97, < 154.0.8037.97	154.0.8037.97

Details and references

CVSS 3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Severity from: CISA (its enrichment of the CVE record)
Weakness: CWE-122

More Google advisories

All Google

Date	Advisory	Severity	Fixed in
Oct 2	Google Chrome: integer overflow Medium4.3Oct 2 CVE-2026-103629154.0.8037.97	Medium4.3	154.0.8037.97
Oct 2	Google Chrome: use after free Critical9.6Oct 2 CVE-2026-103630154.0.8037.97	Critical9.6	154.0.8037.97
Oct 2	Google Chrome: integer overflow Medium4.3Oct 2 CVE-2026-103621154.0.8037.97	Medium4.3	154.0.8037.97
Oct 2	Google Chrome: use after free High8.8Oct 2 CVE-2026-103622154.0.8037.97	High8.8	154.0.8037.97
Oct 2	Google Chrome: use after free High8.8Oct 2 CVE-2026-103623154.0.8037.97	High8.8	154.0.8037.97
Oct 2	Google Chrome: use after free High8.3Oct 2 CVE-2026-103624154.0.8037.97	High8.3	154.0.8037.97