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PatchSiren cyber security CVE debrief

CVE-2026-12019 Google CVE debrief

CVE-2026-12019 is a High-severity vulnerability in Google Chrome's Codecs component. A remote attacker who has compromised the renderer process can exploit this heap buffer overflow vulnerability via a crafted HTML page to potentially perform a sandbox escape.

Vendor
Google
Product
Chrome
CVSS
HIGH 8.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-11
Original CVE updated
2026-06-13
Advisory published
2026-06-11
Advisory updated
2026-06-13

Who should care

Users of Google Chrome on Linux and ChromeOS, particularly those with versions prior to 149.0.7827.115, should apply the update to mitigate this vulnerability.

Technical summary

The vulnerability, tracked as CVE-2026-12019, is a heap buffer overflow in the Codecs component of Google Chrome. It affects Google Chrome on Linux and ChromeOS prior to version 149.0.7827.115. An attacker who has compromised the renderer process can exploit this vulnerability via a crafted HTML page to potentially escape the sandbox.

Defensive priority

High

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.115 or later.
  • Ensure that ChromeOS is up-to-date.

Evidence notes

The CVE-2026-12019 vulnerability has a CVSS score of 8.3 and is considered High severity. It was published on June 11, 2026, and modified on June 13, 2026.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-12019 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-12019

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

  • CVE-2026-12019 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-12019

    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.