CVE-2025-59937
criticalgo-mail is a comprehensive library for sending mails with Go.
Vendor / product: Pebcak — go-mail
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
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Affected products
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
References
- https://github.com/wneessen/go-mail/commit/42e92cfe027be04aff72921adb0f72f11d517479 security-advisories@github.com
- https://github.com/wneessen/go-mail/issues/495 security-advisories@github.com
- https://github.com/wneessen/go-mail/pull/496 security-advisories@github.com
- https://github.com/wneessen/go-mail/security/advisories/GHSA-wpwj-69cm-q9c5 security-advisories@github.com
- https://github.com/wneessen/go-mail/issues/495 134c704f-9b21-4f2e-91b3-4a467353bcc0