Google Chrome: Memory disclosure via uninitialized resource in WebGL
Summary
An uninitialized resource in the WebGL component of Google Chrome can be abused by a remote attacker to read memory outside the browser sandbox. The attacker needs the victim to open a specially crafted HTML page. The vulnerability affects only confidentiality; integrity and availability are not affected according to the vector. Google rates it High; the NVD score of 4.7 (Medium) is still under analysis.
Affected
- Google Chrome desktop builds prior to 157.0.8103.50 (per CVE record and Google advisory summary)
- Exact fixed build numbers for Windows and Mac should be verified against the Google advisory
Fixed in
- Google Chrome 157.0.8103.50 or later (Linux)
- Google Chrome 157.0.8103.50/.51 or later (Windows and Mac, per secondary sources; verify with the Google advisory)
Workaround
Unknown. No vendor-published workaround for systems that cannot be updated.
Exploitation
- No evidence of exploitation in the wild known at the time of research
- Not listed in CISA KEV
- No public proof of concept found
- The zero-day in the same release is CVE-2026-125350 (XML use-after-free), not this CVE
Our recommendation
- Update Google Chrome on all desktop systems to 157.0.8103.50 or later, including Extended Stable and Android installs
- Check managed fleets for pinned or delayed Chrome versions
- Verify the build numbers against Google's advisory before relying on them
- Monitor the NVD entry for the final CVSS score
Public exploits
PoC-in-GitHub, Metasploit and Exploit-DB list nothing for this CVE.
Research sources
- Google Chrome Releases: Stable Channel Update for Desktop chromereleases.googleblog.com
- Chromium issue tracker issues.chromium.org
- OpenCVE: CVE-2026-125345 app.opencve.io
- OffSeq Radar: CVE-2026-125345 radar.offseq.com
- Cryptika: Google Chrome 0-day vulnerability www.cryptika.com
- Qualys ThreatPROTECT: Google Chrome patches zero-day (CVE-2026-125350) threatprotect.qualys.com
Researched and written up in English and German by an AI (Claude by Anthropic) based on NVD, CISA, EPSS and the sources listed. The vendor information is authoritative. Researched on 11 Nov 2026, 21:02.
Original description (NVD)
Uninitialized resource in WebGL in Google Chrome prior to 157.0.8103.50 allowed a remote attacker to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: High)
Sources
The tracker combines official, freely usable data sources – updated continuously:
- NVD (NIST) – CVEs, rating (CVSS), affected products
- CISA KEV – vulnerabilities confirmed by CISA as actively exploited
- CISA Vulnrichment – CISA assessment (SSVC) in the official CVE record
- FIRST EPSS – probability of exploitation
- Microsoft MSRC – Patch Tuesday: vulnerabilities, severity, updates
- PoC-in-GitHub – public proof-of-concept repositories
- Metasploit (Rapid7) – modules of the Metasploit Framework
- Exploit-DB (OffSec) – archive of public exploits (links only)
- Patch days: official vendor pages (linked per vendor) (Vendor patch days)
This product uses data from the NVD API but is not endorsed or certified by the NVD. EPSS data © FIRST.org.
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