CVE-2026-23829

MEDIUM

5.3

Descricao

Mailpit is an email testing tool and API for developers. Prior to version 1.28.3, Mailpit's SMTP server is vulnerable to Header Injection due to an insufficient Regular Expression used to validate `RCPT TO` and `MAIL FROM` addresses. An attacker can inject arbitrary SMTP headers (or corrupt existing ones) by including carriage return characters (`\r`) in the email address. This header injection occurs because the regex intended to filter control characters fails to exclude `\r` and `\n` when used inside a character class. Version 1.28.3 fixes this issue.

Detalhes CVE

Pontuacao CVSS v3.15.3

SeveridadeMEDIUM

Vetor CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado1/19/2026

Ultima modificacao2/23/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

axllent:mailpit

Fraquezas (CWE)

CWE-93CWE-150

Referencias

https://github.com/axllent/mailpit/commit/36cc06c125954dec6673219dafa084e13cc14534(security-advisories@github.com)

https://github.com/axllent/mailpit/releases/tag/v1.28.3(security-advisories@github.com)

https://github.com/axllent/mailpit/security/advisories/GHSA-54wq-72mp-cq7c(security-advisories@github.com)

Correlacoes IOC

Sem correlacoes registradas

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