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Use-after-free in Google Chrome DigitalCredentials sandbox escape

IdentifiersCVE-2026-12451CWE-416

CVE-2026-12451 is a use-after-free vulnerability in the DigitalCredentials component of Google Chrome prior to 149.0.7827.155. The flaw is described as affecting DigitalCredentials and can be triggered via a crafted HTML page. According to the provided advisory context, exploitation requires that the attacker has already compromised the renderer process; from that position, the memory-safety flaw can potentially be leveraged to corrupt memory and escape Chrome’s sandbox.

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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 could allow a remote attacker operating from an already-compromised renderer process to achieve a sandbox escape. This would let the attacker break out of the renderer’s isolation boundary and potentially obtain code execution or elevated capabilities outside the browser sandbox, enabling further compromise of the host or follow-on exploit chaining.

Mitigation

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

No specific workaround is provided in the supplied content. The practical mitigation is prompt patching to a fixed Chrome/Chromium/Edge release. Until updates are applied, reducing exposure to untrusted web content and using defense-in-depth controls such as browser isolation may reduce risk, but these measures are not substitutes for the vendor fix.

Remediation

Patch, then assume compromise.

Upgrade Google Chrome to version 149.0.7827.155 or later. For Chromium on Debian, upgrade to 149.0.7827.155-1~deb13u1 on Debian stable (trixie) or 149.0.7827.155-1~deb12u1 on Debian oldstable (bookworm). For Microsoft Edge (Chromium-based), upgrade to version 149.0.4022.80 or later, which includes the upstream 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
GoogleChromeapplication
Microsoft CorporationEdgeapplication

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

ACTIVITY FEED

Recent activity

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

5 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 activity

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

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2026-12451
NVD
nvd.nist.gov/vuln/detail/CVE-2026-12451
MITRE CWE · CWE-416
cwe.mitre.org