CVE-2025-58189

5.3 MEDIUM

Published: October 29, 2025 Modified: January 29, 2026

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://go.dev/cl/707776

Source: security@golang.org

Patch

https://go.dev/issue/75652

Source: security@golang.org

Issue Tracking

https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bI

Source: security@golang.org

Mailing List Release Notes

https://pkg.go.dev/vuln/GO-2025-4008

Source: security@golang.org

Vendor Advisory

http://www.openwall.com/lists/oss-security/2025/10/08/1

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing List Release Notes Third Party Advisory

5 reference(s) from NVD

Quick Stats

CVSS v3 Score

5.3 / 10.0

EPSS (Exploit Probability)

0.0%

1th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-532

Affected Vendors

golang

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