EUVD-2026-20669
GHSA-pvxc-vj6p-fp82
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Primary rating from NVD.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Lifecycle Timeline
8DescriptionCVE.org
Heap buffer overflow in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page. (Chromium security severity: High)
AnalysisAI
Heap buffer overflow in WebML (a web markup language component) in Google Chrome prior to version 147.0.7727.55 allows remote attackers to obtain potentially sensitive information from process memory by serving a crafted HTML page. The vulnerability requires no user authentication and can be triggered through normal web browsing, though exploitation has a low probability (EPSS 0.03%) and no public exploit code has been identified.
Technical ContextAI
The vulnerability is a heap buffer overflow (CWE-122) in the WebML processing component of Chromium/Chrome's rendering engine. When parsing specially crafted HTML containing malformed WebML elements, the heap buffer handling mechanism fails to properly validate bounds, causing a write or read operation to exceed allocated memory. This memory corruption can leak adjacent heap data containing sensitive information such as authentication tokens, encryption keys, or other process memory contents. The WebML component is a renderer-level feature affecting all Chrome users on all platforms covered by the CPE cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*.
RemediationAI
Users should upgrade Google Chrome to version 147.0.7727.55 or later immediately. Chrome's auto-update feature will deliver this patch automatically on next browser restart for most users, but manual verification can be performed via Settings > About > Chrome to confirm the installed version matches 147.0.7727.55 or higher. No workarounds are available short of disabling untrusted web content or switching browsers; the patch address is the only remediation. Detailed patch information is available in the Chrome Releases blog (https://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html) and the Chromium issue tracker (https://issues.chromium.org/issues/493708165).
Use-after-free vulnerability in the DisplayObject class in the ActionScript 3 (AS3) implementation in Adobe Flash Player
V8 in Google Chrome prior to 54.0.2840.90 for Linux, and 54.0.2840.85 for Android, and 54.0.2840.87 for Windows and Mac
Type confusion in V8 in Google Chrome prior to 59.0.3071.86 for Linux, Windows, and Mac, and 59.0.3071.92 for Android, a
The Array.prototype.concat implementation in builtins.cc in Google V8, as used in Google Chrome before 49.0.2623.108, do
Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderb
Incorrect handling of complex species in V8 in Google Chrome prior to 57.0.2987.98 for Linux, Windows, and Mac and 57.0.
The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbi
An issue was discovered in the Cisco WebEx Extension before 1.0.7 on Google Chrome, the ActiveTouch General Plugin Conta
The XrayWrapper implementation in Mozilla Firefox before 35.0 and SeaMonkey before 2.32 does not properly interact with
The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.2, Thunderbi
The Web IDL implementation in Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and Se
Use-after-free vulnerability in the BitmapData class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13
Same weakness CWE-122 – Heap-based Buffer Overflow
View allSame technique Buffer Overflow
View allVendor StatusVendor
SUSE
Severity: Medium| Product | Status |
|---|---|
| SUSE Package Hub 15 SP6 | Fixed |
| openSUSE Leap 15.6 | Fixed |
| openSUSE Tumbleweed | Fixed |
| SUSE Package Hub 15 SP6 | Fixed |
Share
External POC / Exploit Code
Leaving vuln.today