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PYSEC-2026-665 Mercurial Improper Certificate Validation vulnerability

🗓️ 02 Jul 2026 14:13:17Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 2 Views

Mercurial before 1.6.4 does not validate SSL certificate Common Name, enabling MITM with CA-signed certs.

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06 Jul 2026 08:00Current
6Medium risk
Vulners AI Score6
CVSS 3.15.9
EPSS0.00814
2