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CVE-2026-10939 Google CVE debrief

CVE-2026-10939 is a high-severity vulnerability in Google Chrome prior to version 149.0.7827.53. This use-after-free issue in WebRTC could allow a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. The vulnerability has a CVSS score of 8.8 and is considered High severity by Chromium.

Vendor
Google
Product
Chrome
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-04
Original CVE updated
2026-07-22
Advisory published
2026-06-04
Advisory updated
2026-07-22

Who should care

Users of Google Chrome prior to version 149.0.7827.53 should update to the latest version to mitigate this vulnerability. Chromium has marked this vulnerability as High severity.

Technical summary

The vulnerability is a use-after-free issue in WebRTC, which could allow a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. The CVSS vector for this vulnerability is CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Defensive priority

High

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.53 or later.
  • Refer to [ref-4](https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html) for vendor advisory.

Evidence notes

This CVE record was sourced from [cve-org](https://www.cve.org/CVERecord?id=CVE-2026-10939).

Sources and references

Verified primary and authoritative sources

  • CVE-2026-10939 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-10939

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

  • CVE-2026-10939 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-10939

    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.