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CVE-2026-11034 Google CVE debrief

CVE-2026-11034 is a Medium severity vulnerability in Google Chrome on Android prior to 149.0.7827.53. The vulnerability is caused by insufficient validation of untrusted input in Tab Group Sync, allowing a remote attacker to inject arbitrary scripts or HTML (UXSS) via malicious network traffic. The CVSS score for this vulnerability is 6.1.

Vendor
Google
Product
Chrome
CVSS
MEDIUM 6.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-04
Original CVE updated
2026-06-08
Advisory published
2026-06-04
Advisory updated
2026-06-08

Who should care

Users of Google Chrome on Android prior to version 149.0.7827.53 should update to the latest version to mitigate this vulnerability.

Technical summary

The vulnerability is caused by insufficient validation of untrusted input in Tab Group Sync in Google Chrome on Android prior to 149.0.7827.53. This allows a remote attacker to inject arbitrary scripts or HTML (UXSS) via malicious network traffic.

Defensive priority

Medium

Recommended defensive actions

  • Update Google Chrome on Android to version 149.0.7827.53 or later.

Evidence notes

The CVE record and NVD detail can be found at [cve-org](https://www.cve.org/CVERecord?id=CVE-2026-11034) and [nvd](https://nvd.nist.gov/vuln/detail/CVE-2026-11034).

Official resources

CVE-2026-11034 was published on [cvePublishedAt] and modified on [cveModifiedAt].