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CVE-2026-27586 Caddy's mTLS client authentication silently fails open when CA certificate file is missing or malformed

🗓️ 24 Feb 2026 16:08:20Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 3 Views

Caddy mutual TLS authentication can silently fail open if the CA file is missing or malformed, accepting any system trusted client certificate.

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10 Apr 2026 05:39Current
5.6Medium risk
Vulners AI Score5.6
CVSS 49.3
EPSS0.00267
3