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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
2026-07-23
Advisory published
2026-06-04
Advisory updated
2026-07-23

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).

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11034 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11034

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

  • CVE-2026-11034 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11034

    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.