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CVE-2026-13862: Insufficient policy enforcement in Web Authentication (Passkeys & Security Keys) in Google Chrome on iOS prior to 150.0.7871.47 allowed an attacker in a privileged network position

mediumCVSS 6.5CVE-2026-13862
Insufficient policy enforcement in Web Authentication (Passkeys & Security Keys) in Google Chrome on iOS prior to 150.0.7871.47 allowed an attacker in a privileged network position to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)

Details

Source
NVD Recent CVEs (US · database · site)
Severity
medium — CVSS 6.5
Published
2026-06-30
Last updated
2026-07-01
Exploitation
Not in CISA KEV at last sync

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-13862

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-2026-13862coverage & exploitation statusNVD · CVE.org

Recent advisories for Insufficient policy enforcement

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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