lettre has 1 CVE on record.

CVEs per month

Last 12 months, by publish date

1025/101125/111225/120126/010226/020326/030426/040526/050626/060726/070826/080926/09

Exploited share: 0% vs 1% corpus
Median CVSS: —
Publish → KEV: —
Last 90 days: 0 prev 1

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lettre 1

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1

Total CVEs

0

Critical

0

CISA KEV

0

Exploited

Worst active — by depth score

CVE-2026-46428NoneTLS hostname verification disabled when using Boring TLS backend3

lettre vulnerabilities

CVEs affecting lettre, newest first. Open any entry for full detail, references, and exploit status.

1 CVERSS

CVE-2026-46428None

TLS hostname verification disabled when using Boring TLS backend

TLS hostname verification disabled when using Boring TLS backend

▾ Sunlitlettre · lettreEPSS 0.32%via OSV

lettre vulnerabilities (CVEs) · VulnSea