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Use-after-Free in Google Chrome WebView on Android

IdentifiersCVE-2026-13037CWE-416

CVE-2026-13037 is a high-severity use-after-free vulnerability in WebView in Google Chrome on Android prior to version 149.0.7827.197. The flaw allows memory to be accessed after it has been freed while processing attacker-controlled web content. According to the provided advisory, exploitation is possible via a crafted HTML page and can result in arbitrary code execution inside the browser sandbox. The affected component is WebView on Android.

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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 an attacker to execute arbitrary code within the Chrome/WebView sandbox on affected Android systems. This can compromise the affected renderer or WebView process and may enable further malicious actions available from that sandboxed context. The broader source material also notes that Chrome vulnerabilities in this release could be used to trigger denial of service, remote code execution, and security restriction bypass, but for this specific CVE the explicitly stated impact is arbitrary code execution inside a sandbox.

Mitigation

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

If immediate patching is not possible, reduce exposure by limiting use of untrusted or attacker-controlled web content in affected Android Chrome/WebView contexts until the update is applied. Prioritize rapid rollout of the patched browser/WebView version because the provided material does not describe a vendor-supplied workaround other than updating.

Remediation

Patch, then assume compromise.

Upgrade Google Chrome on Android and Android WebView to version 149.0.7827.197 or later. More generally, deploy the fixed Stable channel release referenced in the advisory and ensure affected Android devices receive the updated Chrome/WebView package as soon as possible.
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

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

4 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-2026-13037
NVD
nvd.nist.gov/vuln/detail/CVE-2026-13037
MITRE CWE · CWE-416
cwe.mitre.org