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PatchSiren cyber security CVE debrief

CVE-2026-11668 Google CVE debrief

CVE-2026-11668 is a High severity vulnerability in Google Chrome on Linux, ChromeOS prior to 149.0.7827.103. This issue involves an uninitialized use in Codecs that allows a remote attacker to leak cross-origin data via a crafted video file. The vulnerability has a CVSS score of 4.3, indicating a Medium severity level.

Vendor
Google
Product
Chrome
CVSS
MEDIUM 4.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-09
Original CVE updated
2026-06-10
Advisory published
2026-06-09
Advisory updated
2026-06-10

Who should care

Users of Google Chrome on Linux and ChromeOS systems, particularly those who handle sensitive cross-origin data, should be aware of this vulnerability. This vulnerability was publicly disclosed on 2026-06-09.

Technical summary

The vulnerability is caused by an uninitialized use in the Codecs component of Google Chrome. This issue allows a remote attacker to leak cross-origin data by providing a crafted video file. The vulnerability affects Google Chrome on Linux and ChromeOS systems prior to version 149.0.7827.103.

Defensive priority

High

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.103 or later to mitigate this vulnerability.
  • Limit exposure to untrusted video files.

Evidence notes

Evidence for this CVE comes from the official CVE record and the National Vulnerability Database (NVD).

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11668 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11668

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

  • CVE-2026-11668 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11668

    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.