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PatchSiren cyber security CVE debrief

CVE-2026-10013 Google CVE debrief

A use-after-free vulnerability in Google Chrome's WebCodecs API, fixed in version 148.0.7778.216, enables remote code execution within the browser sandbox when processing malicious HTML content. The vulnerability stems from improper memory management in WebCodecs, a browser API for encoding and decoding audio and video. Google has assigned this a High severity rating. No known exploitation in the wild has been reported, and the vulnerability is not listed in CISA's Known Exploited Vulnerabilities catalog.

Vendor
Google
Product
Chrome
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-28
Original CVE updated
2026-07-21
Advisory published
2026-05-28
Advisory updated
2026-07-21

Who should care

Organizations with unmanaged Chrome deployments, security teams responsible for browser security posture, and developers building applications using WebCodecs who need to ensure client browser versions are current.

Technical summary

The vulnerability exists in Chrome's implementation of the WebCodecs API, which provides low-level access to media encoding and decoding. A use-after-free condition occurs when memory is accessed after being freed, potentially allowing an attacker to corrupt heap memory and achieve code execution. The attack vector requires user interaction with a crafted HTML page, but no additional privileges are needed beyond standard browser execution. The sandbox containment limits impact to browser context, preventing direct system compromise.

Defensive priority

high

Recommended defensive actions

  • Update Google Chrome to version 148.0.7778.216 or later immediately
  • Verify automatic updates are enabled for Chrome in enterprise environments
  • Review browser extension policies to reduce attack surface from untrusted web content
  • Monitor for anomalous browser crashes or unexpected media processing behavior as potential exploitation indicators
  • Apply security updates to Chromium-based browsers (Edge, Brave, Opera) once vendor patches become available

Evidence notes

Vulnerability description and affected version confirmed via NVD entry and Chrome Release Blog. CWE-416 (Use After Free) classification provided by Chrome security team. Fix version 148.0.7778.216 explicitly stated in Chrome release notes.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-10013 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-10013

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-10013 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-10013

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.