What is CVE-2026-11034?

CVE-2026-11034 is a medium-severity vulnerability in Google Android, classified under Improper Input Validation. CVSS score: 6.1/10. Published 2026-06-04.

How severe is CVE-2026-11034?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Improper input validation in Google Android

CVE-2026-11034

Insufficient validation of untrusted input in Tab Group Sync in Google Chrome on Android prior to 149.0.7827.53 allowed a remote attacker to inject arbitrary scripts or HTML (UXSS) via malicious network traffic. (Chromium security severity: Medium)

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2026-06-04 · last modified 2026-07-23.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (7.1th percentile), scored 2026-10-07.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 7.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Google Android
Google Chrome — versions 149.0.7827.53

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html (Vendor Advisory)
issues.chromium.org/issues/497934980 (Permissions Required)

Frequently asked questions

What is CVE-2026-11034?: CVE-2026-11034 is a medium-severity vulnerability in Google Android, classified under Improper Input Validation. CVSS score: 6.1/10. Published 2026-06-04.
How severe is CVE-2026-11034?: Medium severity. CVSS v3 base score is 6.1 out of 10.