CVE-2026-17768

criticalCVSS 9.6covered by 2 sourcesfirst seen 2026-07-14

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 WebSockets implementation.
Who is affected: All Chromium-based browsers including Microsoft Edge that ingest the affected Chromium version.
Urgency: Patch when available; WebSocket validation bypass could enable injection or protocol confusion attacks.
Action: Update Chromium and Microsoft Edge to patched versions when available from Google Chrome Releases.

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

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Exploitation outlook

Low exploitation risk0.32% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 24% of all EPSS-scored CVEs.

Advisory coverage (2)

criticalCVE-2026-17768: Insufficient validation of untrusted input in WebSockets in Google Chrome prior to 151.0.7922.…nvd · 2026-07-30
unknownCVE-2026-17768: Chromium: CVE-2026-17768 Insufficient validation of untrusted input in WebSocketsmsrc · 2026-07-14

External references

NVD record for CVE-2026-17768

CVE.org record

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