lettre vulnerabilities

Browse known CVEs and advisories by package and ecosystem. Severity tells you the worst case. What determines real risk is whether the vulnerable code actually runs in your applications.

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CVE-IDSeverityPackage summary
CVE-2026-46428Criticallettre: lettre has TLS hostname verification disabled when using Boring TLS backendCVE-2020-28247Mediumlettre: Argument injection in lettreCVE-2021-38189Criticallettre: SMTP command injection in lettre

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