Vulnerability Description
When Conn.Handshake fails during ALPN negotiation the error contains attacker controlled information (the ALPN protocols sent by the client) which is not escaped.
CVSS Score
5.3
MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Golang | Go | < 1.24.8 |
Related Weaknesses (CWE)
References
- https://go.dev/cl/707776Patch
- https://go.dev/issue/75652Issue Tracking
- https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bIMailing ListRelease Notes
- https://pkg.go.dev/vuln/GO-2025-4008Vendor Advisory
- http://www.openwall.com/lists/oss-security/2025/10/08/1Mailing ListRelease NotesThird Party Advisory
FAQ
What is CVE-2025-58189?
CVE-2025-58189 is a vulnerability with a CVSS score of 5.3 (MEDIUM). When Conn.Handshake fails during ALPN negotiation the error contains attacker controlled information (the ALPN protocols sent by the client) which is not escaped.
How severe is CVE-2025-58189?
CVE-2025-58189 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-58189?
Check the references section above for vendor advisories and patch information. Affected products include: Golang Go.