What is CVE-2025-58189?

CVE-2025-58189 is a medium-severity vulnerability in Golang Go, classified under Insertion of Sensitive Information into Log File. CVSS score: 5.3/10. Published 2025-10-29.

How severe is CVE-2025-58189?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Information disclosure in Golang Go

CVE-2025-58189

When Conn.Handshake fails during ALPN negotiation the error contains attacker controlled information (the ALPN protocols sent by the client) which is not escaped.

EPSS: 0.004 (35.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Golang Go
Go Standard Library Crypto/tls — versions 0, 1.25.0

Weakness classification (CWE)

CWE-532 — Insertion of Sensitive Information into Log File

References

security@golang.org (Patch)
security@golang.org (Issue Tracking)
security@golang.org (Mailing List, Release Notes)
security@golang.org (Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Release Notes, Third Party Advisory)

Frequently asked questions

What is CVE-2025-58189?: CVE-2025-58189 is a medium-severity vulnerability in Golang Go, classified under Insertion of Sensitive Information into Log File. CVSS score: 5.3/10. Published 2025-10-29.
How severe is CVE-2025-58189?: Medium severity. CVSS v3 base score is 5.3 out of 10.