EUVD-2026-17793
GHSA-rxr9-x3w7-wrh7
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
Primary rating from NVD.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionCVE.org
Use after free in WebCodecs in Google Chrome prior to 146.0.7680.178 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
AnalysisAI
Remote code execution in Google Chrome prior to 146.0.7680.178 allows unauthenticated remote attackers to execute arbitrary code within the Chrome sandbox via a crafted HTML page exploiting a use-after-free vulnerability in the WebCodecs component. The vulnerability affects all versions before the patched release and has been addressed by Google with a vendor-released patch; no public exploit code or active exploitation has been confirmed at the time of analysis.
Technical ContextAI
The vulnerability exists in Google Chrome's WebCodecs implementation, a web API used for encoding and decoding audio and video content. CWE-416 (Use After Free) indicates that the underlying issue involves memory being accessed after it has been freed, a classic memory safety defect common in C/C++ codebases. When WebCodecs processes a specially crafted HTML page containing malicious media content or codec operations, a freed memory region can be dereferenced, potentially allowing an attacker to overwrite memory and achieve code execution. The use-after-free occurs within the Chrome sandbox, which limits the impact but does not prevent it entirely, as sandbox escapes or further exploitation chains could elevate privileges.
RemediationAI
Vendor-released patch: upgrade to Google Chrome 146.0.7680.178 or later. This update addresses the use-after-free in WebCodecs and should be applied immediately to all Chrome installations. Users can verify their current version in Chrome's About menu, which will automatically check for and offer updates. Organizations managing Chrome deployments should push version 146.0.7680.178 or newer to all endpoints. Details are available in the Chrome stable channel update announcement at https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_31.html and the Chromium issue tracker at https://issues.chromium.org/issues/491515787.
Use-after-free vulnerability in the DisplayObject class in the ActionScript 3 (AS3) implementation in Adobe Flash Player
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The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.2, Thunderbi
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Use-after-free vulnerability in the BitmapData class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13
Same weakness CWE-416 – Use After Free
View allSame technique Use After Free
View allVendor StatusVendor
Debian
| Release | Status | Fixed Version | Urgency |
|---|---|---|---|
| bullseye (security), bullseye | vulnerable | 120.0.6099.224-1~deb11u1 | - |
| bookworm | vulnerable | 143.0.7499.169-1~deb12u1 | - |
| bookworm (security) | vulnerable | 146.0.7680.164-1~deb12u1 | - |
| trixie | vulnerable | 145.0.7632.159-1~deb13u1 | - |
| trixie (security) | vulnerable | 146.0.7680.164-1~deb13u1 | - |
| forky | vulnerable | 146.0.7680.153-1 | - |
| sid | fixed | 146.0.7680.177-1 | - |
| bullseye | fixed | (unfixed) | end-of-life |
| (unstable) | fixed | 146.0.7680.177-1 | - |
SUSE
Severity: MediumShare
External POC / Exploit Code
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