Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Remote crafted page needs user interaction (UI:R) but no privileges (PR:N); sandbox escape crosses the renderer/host boundary (S:C) with high C/I/A impact.
Primary rating from Vendor (google).
CVSS VectorVendor: google
Lifecycle Timeline
4DescriptionCVE.org
Insufficient validation of untrusted input in Codecs in Google Chrome prior to 151.0.7922.109 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)
AnalysisAI
Sandbox escape in Google Chrome's Codecs component (versions prior to 151.0.7922.109) allows a remote attacker to break out of the renderer sandbox when a victim views a crafted HTML page, via insufficient validation of untrusted input (CWE-20). Rated CVSS 9.6 with a changed scope, the flaw affects the desktop Stable channel across all platforms and is fixed in 151.0.7922.109. No public exploit identified at time of analysis, and it is not listed in CISA KEV.
Technical ContextAI
The vulnerability lives in Chromium's media Codecs subsystem, the code responsible for demuxing and decoding audio/video content embedded in web pages. Codec parsers routinely process complex, attacker-controlled binary structures, making them a recurring source of memory-safety and input-validation defects. The root cause is classified as CWE-20 (Improper Input Validation): the codec path accepts malformed or unexpected input without adequate checks, which can be leveraged to influence execution beyond the intended renderer sandbox boundary. The affected component is the Chrome desktop browser (Google Chrome prior to 151.0.7922.109); no specific CPE string was supplied in the input, but the EUVD entry scopes it to the Chrome 151.0.7922.x branch below 151.0.7922.109.
RemediationAI
Vendor-released patch: 151.0.7922.109 - update Google Chrome to 151.0.7922.109 or later on all desktop platforms via the browser's built-in updater (Settings > About Chrome) and restart the browser to apply, per the Chrome Releases advisory (https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_01193673229.html). In managed fleets, push the update through your enterprise Chrome update policy and confirm end users have relaunched, since Chrome updates only take effect after a restart. No supported workaround fully removes the risk; as an interim compensating control you can reduce exposure to malicious media by restricting browsing to trusted sites, deploying URL/DNS filtering, or disabling autoplay of untrusted media where feasible - but these do not eliminate the codec parsing path and are inferior to patching. Users of Chromium-based browsers should apply their vendor's update once the Chromium fix is incorporated.
Same weakness CWE-20 – Improper Input Validation
View allSame technique Information Disclosure
View allVendor StatusVendor
SUSE
Severity: CriticalShare
External POC / Exploit Code
Leaving vuln.today
EUVD-2026-54133
GHSA-mh4h-c4w6-m987