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Mallory
High

Use-after-free in PDFium in Google Chrome

IdentifiersCVE-2026-11305CWE-416· Use After Free

CVE-2026-11305 is a use-after-free vulnerability in PDFium affecting Google Chrome versions prior to 149.0.7827.53. The flaw can be triggered by a crafted PDF file and, upon successful exploitation, allows a remote attacker to achieve arbitrary code execution within the Chrome sandbox. The available source material identifies the bug class as a PDFium use-after-free but does not provide function-level or root-cause implementation details.

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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 allows a remote attacker to execute arbitrary code in the context of the browser's sandboxed PDF processing environment. The vulnerability may lead to memory corruption and can compromise confidentiality, integrity, and availability within the sandboxed renderer/process context. Based on the provided information, code execution is limited to inside the sandbox; no sandbox escape is described in the available material.

Mitigation

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

No specific workaround is provided in the available advisories. Practical mitigation is to update affected browsers promptly. Until patching is completed, reducing exposure to untrusted PDF content may lower risk, but this is not presented as a vendor-supported workaround in the provided sources.

Remediation

Patch, then assume compromise.

Upgrade Google Chrome to version 149.0.7827.53 or later. For Chromium-based Microsoft Edge, upgrade to version 149.0.4022.52 or later. Debian users should update chromium to the fixed package versions provided by their distribution, including 149.0.7827.53-1~deb12u1 for bookworm and 149.0.7827.53-1~deb13u1 for trixie, as applicable.
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

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What this page doesn’t show

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Exposure mapping

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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 activity4

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