CVE-2026-13028Network attack vector

Sandbox escape via WebGL use-after-free

Published Jun 24, 2026 · Updated Jun 24, 2026

Use-after-free in WebGL in Google Chrome for Android before 149.0.7827.197 allows remote attackers to escape its sandbox via crafted HTML. Public records identify WebGL as the affected locus but do not disclose which object is freed or which subsequent access uses the stale reference. A user must load attacker-controlled HTML; successful exploitation crosses the renderer sandbox, while restricted issue details prevent a narrower consequence assessment.

CVSS severity9.6
Critical
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in WebGL in Google Chrome for Android before 149.0.7827.197 allows remote attackers to escape its sandbox via crafted HTML. Public records identify WebGL as the affected locus but do not disclose which object is freed or which subsequent access uses the stale reference. A user must load attacker-controlled HTML; successful exploitation crosses the renderer sandbox, while restricted issue details prevent a narrower consequence assessment.

The record

CVE
CVE-2026-13028
Published
Jun 24, 2026
Updated
Jun 24, 2026
Vendor
Go standard library
Product
Google Chrome
Classifications
CWE-416, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=149.0.7827.197 <149.0.7827.197

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Go standard library · Google Chromeversion=149.0.7827.197 <149.0.7827.197

Published CVSS scores

9.6CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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