CVE-2026-103631
published 2026-10-02CVE-2026-103631: 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…
PriorityP352high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
0.46%
38.3th percentile
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
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| chrome | < 154.0.8037.97 | 154.0.8037.97 | |
| chrome | >= 154.0.8037.97 < 154.0.8037.97 | 154.0.8037.97 | |
| chrome_desktop | — | — |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
vendor_redhat8.8HIGH
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GHSA
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.
ghsa_unreviewed·2026-10-02
CVE-2026-103631 CWE-122 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.
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)
VulDB
Google Chrome up to 154.0.8037.92 WebRTC buffer overflow
vuldb·2026-10-02
CVE-2026-103631 [CRITICAL] Google Chrome up to 154.0.8037.92 WebRTC buffer overflow
A vulnerability was found in Google Chrome and classified as critical. Affected by this issue is some unknown functionality of the component WebRTC. The manipulation results in buffer overflow.
This vulnerability is reported as CVE-2026-103631. The attack can be launched remotely. No exploit exists.
It is suggested to upgrade the affected component.
Red Hat
chromium-browser: Buffer overflow in WebRTC
vendor_redhat·2026-10-02·CVSS 8.8
CVE-2026-103631 [HIGH] CWE-122 chromium-browser: Buffer overflow in WebRTC
chromium-browser: Buffer overflow in WebRTC
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)
A buffer overflow flaw was found in the WebRTC component of the Chromium browser.
Upstream bug(s):
https://issues.chromium.org/issues/567088927
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.
Chrome
Stable Channel Update for Desktop: CVE-2026-103631
vendor_chrome·2026-10-01
CVE-2026-103631 [HIGH] Stable Channel Update for Desktop: CVE-2026-103631
Stable Channel Update for Desktop
CVE-2026-103631: Buffer overflow in WebRTC. Reported by Xinyang Ge (Anthropic), assisted by Claude on 2026-09-28 [N/A][ 553147154 ] Medium CVE-2026-103627: Information leak in SVG
Reported by Google on 2026-08-26 We would also like to thank all security researchers that worked with us during the development cycle to prevent security bugs from ever reaching the stable channel
Severity: high
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-103621 CVE-2026-103622 CVE-2026-103623 CVE-2026-103624 CVE-2026-103625 CVE-2026-103626 CVE-2026-103627 CVE-2026-103628 CVE-2026-103629 CVE-2026-103630 CVE-2026-103631 chromium: various flaws
bugzilla·2026-10-05·CVSS 4.3
CVE-2026-103621 [MEDIUM] CVE-2026-103621 CVE-2026-103622 CVE-2026-103623 CVE-2026-103624 CVE-2026-103625 CVE-2026-103626 CVE-2026-103627 CVE-2026-103628 CVE-2026-103629 CVE-2026-103630 CVE-2026-103631 chromium: various flaws
CVE-2026-103621 CVE-2026-103622 CVE-2026-103623 CVE-2026-103624 CVE-2026-103625 CVE-2026-103626 CVE-2026-103627 CVE-2026-103628 CVE-2026-103629 CVE-2026-103630 CVE-2026-103631 chromium: various flaws [epel-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Type confusion in V8 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)
Use after free in Contextual Tasks in Google Chrome on on Windows prior to 154.0.8037.97 allowed a remote attacker who had compromised the renderer process to potentially
Bugzilla
CVE-2026-103621 CVE-2026-103622 CVE-2026-103623 CVE-2026-103624 CVE-2026-103625 CVE-2026-103626 CVE-2026-103627 CVE-2026-103628 CVE-2026-103629 CVE-2026-103630 CVE-2026-103631 chromium: various flaws
bugzilla·2026-10-05·CVSS 4.3
CVE-2026-103621 [MEDIUM] CVE-2026-103621 CVE-2026-103622 CVE-2026-103623 CVE-2026-103624 CVE-2026-103625 CVE-2026-103626 CVE-2026-103627 CVE-2026-103628 CVE-2026-103629 CVE-2026-103630 CVE-2026-103631 chromium: various flaws
CVE-2026-103621 CVE-2026-103622 CVE-2026-103623 CVE-2026-103624 CVE-2026-103625 CVE-2026-103626 CVE-2026-103627 CVE-2026-103628 CVE-2026-103629 CVE-2026-103630 CVE-2026-103631 chromium: various flaws [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Type confusion in V8 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)
Use after free in Contextual Tasks in Google Chrome on on Windows prior to 154.0.8037.97 allowed a remote attacker who had compromised the renderer process to potential
Bugzilla
CVE-2026-103631 chromium-browser: Buffer overflow in WebRTC
bugzilla·2026-10-02
CVE-2026-103631 [HIGH] CVE-2026-103631 chromium-browser: Buffer overflow in WebRTC
CVE-2026-103631 chromium-browser: Buffer overflow in WebRTC
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)
2026-10-02
Published