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Use-after-free in Google Chrome Autofill on Windows

IdentifiersCVE-2026-13038CWE-416

CVE-2026-13038 is a critical use-after-free vulnerability in the Autofill component of Google Chrome on Windows. According to the provided content, affected versions are Chrome on Windows prior to 149.0.7827.197. The flaw can be triggered by a remote attacker via a crafted HTML page, leading to memory corruption in the Autofill subsystem after freed memory is reused. The available advisory does not provide the specific vulnerable function or code path, but states that successful exploitation may result in arbitrary code execution.

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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 allow a remote attacker to execute arbitrary code on the affected Windows system in the context of the Chrome process. The broader impact may include browser compromise, theft of data accessible to the browser context, installation or execution of additional payloads, and potentially further post-exploitation activity depending on the privileges and local security posture of the host.

Mitigation

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

If immediate patching is not possible, reduce exposure by limiting use of Chrome on untrusted websites, restricting access to attacker-controlled or unknown HTML content, and applying enterprise browser hardening and exploit-mitigation controls available on Windows. These are temporary risk-reduction measures only; the primary mitigation is to update to a fixed version.

Remediation

Patch, then assume compromise.

Upgrade Google Chrome on Windows to version 149.0.7827.197 or later. More generally, deploy the Chrome Stable channel security update identified in the advisory and ensure enterprise-managed systems receive the patched build promptly.
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

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 activity2

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

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2026-13038
NVD
nvd.nist.gov/vuln/detail/CVE-2026-13038
MITRE CWE · CWE-416
cwe.mitre.org