CVE-2026-12461: Out of bounds read in WebRTC
Chromium: CVE-2026-12461 Out of bounds read in WebRTC
Other sources
Out of bounds read in WebRTC in Google Chrome on Windows prior to 149.0.7827.155 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High)
— MITRE
This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.
— Microsoft
Credit
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 149.0.7827.155 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 149.0.4022.80 - Upgrade
Upgrade
Chromium-based browsers (WebRTC)to a version that resolves this vulnerability.Fixed in 149.0.7827.155 - Compensating control
Until patched, mitigate exposure by preventing remote users from loading untrusted/crafted HTML pages that could trigger the WebRTC out-of-bounds read (e.g., limit access to untrusted web content).
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2026-12437
- CVE-2026-12438
- CVE-2026-12439
- CVE-2026-12440
- CVE-2026-12441
- CVE-2026-12442
- CVE-2026-12443
- CVE-2026-12444
- CVE-2026-12445
- CVE-2026-12446
- CVE-2026-12447
- CVE-2026-12448
- CVE-2026-12449
- CVE-2026-12450
- CVE-2026-12451
- CVE-2026-12452
- CVE-2026-12453
- CVE-2026-12454
- CVE-2026-12455
- CVE-2026-12456
- CVE-2026-12457
- CVE-2026-12458
- CVE-2026-12459
- CVE-2026-12460
- CVE-2026-12462
- CVE-2026-12463
- CVE-2026-12464
- CVE-2026-12465
- CVE-2026-12466
- CVE-2026-12467
- CVE-2026-12468
- CVE-2026-12469
Frequently Asked Questions
What is the severity of CVE-2026-12461?
The severity of CVE-2026-12461 is classified as High.
How do I fix CVE-2026-12461?
To fix CVE-2026-12461, ensure that Google Chrome is updated to version 149.0.7827.155 or later.
What type of vulnerability is CVE-2026-12461?
CVE-2026-12461 is an out of bounds read vulnerability in WebRTC of Google Chrome.
What could an attacker achieve by exploiting CVE-2026-12461?
An attacker could potentially obtain sensitive information from process memory by exploiting CVE-2026-12461.
Which operating systems are affected by CVE-2026-12461?
CVE-2026-12461 affects Google Chrome on Windows systems prior to version 149.0.7827.155.