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CVE-2026-41319 MailKit has STARTTLS Response Injection via unflushed stream buffer that enables SASL mechanism downgrade

🗓️ 24 Apr 2026 03:07:24Reported by GoogleType 
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 osv
🔗 osv.dev👁 1 Views

CVE-2026-41319: MailKit STARTTLS response injection enables a man in the middle to downgrade SASL with pre-TLS data.

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08 Jul 2026 08:14Current
6.2Medium risk
Vulners AI Score6.2
CVSS 3.16.5
EPSS0.00223
1