CVE-2025-59937

Description

go-mail is a comprehensive library for sending mails with Go. In versions 0.7.0 and below, due to incorrect handling of the mail.Address values when a sender- or recipient address is passed to the corresponding MAIL FROM or RCPT TO commands of the SMTP client, there is a possibility of wrong address routing or even ESMTP parameter smuggling. For successful exploitation, it is required that the user's code allows for arbitrary mail address input (i. e. through a web form or similar). If only static mail addresses are used (i. e. in a config file) and the mail addresses in use do not consist of quoted local parts, this should not affect users. This issue is fixed in version 0.7.1

Weakness classification

• security-advisories@github.com: CWE-88
• nvd@nist.gov: CWE-88

Primary references

• security-advisories@github.com — Patch
• security-advisories@github.com — Exploit, Issue Tracking
• security-advisories@github.com — Issue Tracking, Patch
• security-advisories@github.com — Vendor Advisory
• 134c704f-9b21-4f2e-91b3-4a467353bcc0 — Exploit, Issue Tracking