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Uninitialized Use in GPU in Google Chrome

IdentifiersCVE-2026-13023CWE-908

CVE-2026-13023 is a high-severity uninitialized-use vulnerability in the GPU component of Google Chrome and Chromium-based browsers. In Google Chrome versions prior to 149.0.7827.197, a remote attacker who had already compromised the renderer process could, via a crafted HTML page, trigger use of uninitialized memory in the GPU process/component and obtain potentially sensitive information from process memory. The issue is described by Google as an 'Uninitialized Use in GPU' and is a memory-initialization flaw rather than a direct code-execution primitive based on the available information.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation can disclose potentially sensitive information from process memory. Based on the available vendor description, the vulnerability enables an attacker who has already achieved renderer-process compromise to read unintended memory contents from the GPU-related process context, which may weaken process isolation and expose data useful for further exploitation or post-compromise actions. No evidence of active exploitation at disclosure time was reported in the provided content.

Mitigation

If you can’t patch tonight, do this now.

No specific workaround or configuration-based mitigation is provided in the available advisories. Mitigation is limited to reducing exposure until patching by promptly updating affected Chrome/Chromium-based browsers, prioritizing environments where untrusted web content is rendered. Standard hardening such as minimizing exposure to untrusted sites may reduce risk, but no vendor-supported alternative mitigation is documented in the provided content.

Remediation

Patch, then assume compromise.

Upgrade Google Chrome to version 149.0.7827.197 or later. For Chromium on Debian stable (trixie), upgrade to 149.0.7827.196-1~deb13u1 or later patched package versions provided by Debian. For Microsoft Edge (Chromium-based), upgrade to version 149.0.4022.96 or later. Other Chromium-based browsers should be updated to vendor releases incorporating the Chromium fix.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
DebianChromiumapplication
GoogleChromeapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.

6 SOURCESView more in app
What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity1

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2026-13023
NVD
nvd.nist.gov/vuln/detail/CVE-2026-13023
MITRE CWE · CWE-908
cwe.mitre.org