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CVE-2026-23829 Mailpit has SMTP Header Injection via Regex Bypass

🗓️ 18 Jan 2026 23:23:04Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 2 Views

Mailpit before 1.28.3 allows SMTP header injection via RCPT TO and MAIL FROM due to regex not excluding CR and LF.

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10 Apr 2026 05:39Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.15.3
EPSS0.01441
2