CVE-2025-59937 is a critical vulnerability in the go-mail library (versions 0.7.0 and below) that allows for ESMTP parameter smuggling or incorrect mail routing due to improper handling of mail.Address values in SMTP commands. This vulnerability affects applications using go-mail that accept arbitrary user input for sender or recipient addresses. The vulnerability has a CVSS score of 9.1 (CRITICAL), indicating a high-impact, easily exploitable flaw with no user interaction required. Successful exploitation could lead to unauthorized information disclosure or modification. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE. The vendor has released a fix in version 0.7.1.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 0.7.1CPE matchmatch criteria | cpe:2.3:a:pebcak:go-mail:*:*:*:*:*:go:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.