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CVE-2026-12469 Google CVE debrief

CVE-2026-12469 is a High-severity vulnerability in Google Chrome on Android prior to 149.0.7827.155. This issue involves an uninitialized use in the GPU, which could allow a remote attacker to leak cross-origin data via a crafted HTML page. The Chromium security team has assessed this vulnerability as High severity. Affected product deployments should be reviewed for potential exposure, and owners should be assigned for follow-up. The vulnerability has a CVSS score of 4.3, indicating a MEDIUM severity overall. Users of Google Chrome on Android should update to the latest version to protect against potential exploitation. The CVE record was published on 2026-06-17T13:20:04.163Z and was last modified on 2026-06-18T13:43:38.720Z.

Vendor
Google
Product
Chrome
CVSS
MEDIUM 4.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-17
Original CVE updated
2026-06-18
Advisory published
2026-06-17
Advisory updated
2026-06-18

Who should care

Users of Google Chrome on Android, particularly those who browse the web on their mobile devices, should be aware of this vulnerability. If you're using a version of Chrome older than 149.0.7827.155, you should update to the latest version to protect against potential exploitation.

Technical summary

The vulnerability, tracked as CVE-2026-12469, is caused by an uninitialized use in the GPU of Google Chrome on Android. This issue allows a remote attacker to leak cross-origin data by providing a crafted HTML page. The vulnerability has been assessed as High severity by the Chromium security team. The CVSS score for this vulnerability is 4.3, which is considered MEDIUM severity. Affected product context indicates that Google Chrome on Android prior to version 149.0.7827.155 is vulnerable. Defensive impact includes the potential leakage of cross-origin data. Source-grounded technical framing confirms that the vulnerability is in the GPU and involves uninitialized use.

Defensive priority

Medium priority should be given to patching this vulnerability, as it could allow for the leakage of cross-origin data. Although the severity is High, the CVSS score is 4.3, indicating a MEDIUM severity overall.

Recommended defensive actions

  • Update Google Chrome on Android to version 149.0.7827.155 or later
  • Ensure that all users of Google Chrome on Android are aware of the need to keep their browsers up-to-date
  • Consider implementing additional security measures, such as monitoring for suspicious activity or enforcing a defense-in-depth strategy
  • Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
  • Review the supplied official advisory or CVE record to validate affected scope, severity, and vendor guidance
  • Plan vendor-supported updates or mitigations through normal change control where exposure is confirmed
  • Review compensating controls for exposed systems while remediation is scheduled and verified

Evidence notes

The CVE record was published on 2026-06-17T13:20:04.163Z and was last modified on 2026-06-18T13:43:38.720Z. The NVD entry is currently Analyzed. The vulnerability affects Google Chrome on Android prior to version 149.0.7827.155.

Official resources

AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-06-17T13:20:04.163Z and has not been modified since then. The NVD entry is currently Analyzed.