CVE-2026-11034

unknowncovered by 1 sourcefirst seen 2026-06-09

This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.

CSIRTS triage

What: Insufficient validation of untrusted input in Tab Group Sync.
Who is affected: Users of Chromium-based browsers, including Microsoft Edge.
Urgency: Remediation urgency is unknown due to lack of severity information.
Action: Update to the latest version of Chromium or affected browsers.

AI-assisted analysis generated from the source advisory — verify against the original.

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Exploitation outlook

Low exploitation risk0.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 8% of all EPSS-scored CVEs.

Advisory coverage (1)

unknownCVE-2026-11034: Chromium: CVE-2026-11034 Insufficient validation of untrusted input in Tab Group Syncmsrc · 2026-06-09

External references

NVD record for CVE-2026-11034

CVE.org record

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