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CVE-2026-11251: Chromium: CVE-2026-11251 Insufficient validation of untrusted input in Password Manager

unknownCVE-2026-11251
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
There is insufficient validation of untrusted input in Password Manager.
Who is affected
Users of Chromium-based browsers like Microsoft Edge are affected.
Urgency
Remediation is necessary as vulnerabilities can lead to potential exploitation.
Action
Update to the latest version of Chromium or Microsoft Edge.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
unknown
Published
2026-06-09
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-11251

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-11251coverage & exploitation statusNVD · CVE.org

Recent advisories for Chromium

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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