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CVE-2025-58189
ALPN negotiation error contains attacker controlled information in crypto/tls
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.

INFO

Published Date :

Oct. 29, 2025, 11:16 p.m.

Last Modified :

Oct. 29, 2025, 11:16 p.m.

Remotely Exploit :

No

Source :

[email protected]
Affected Products

The following products are affected by CVE-2025-58189 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Golang go
: Total Affected Vendor : 1 | Products : 1
Solution
Escape attacker-controlled information in ALPN negotiation errors to prevent disclosure.
  • Validate and sanitize ALPN protocol strings.
  • Escape all user-supplied data in error messages.
  • Implement strict input validation for network protocols.
  • Update network handling components to escape data.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-58189.

URL Resource
https://go.dev/cl/707776
https://go.dev/issue/75652
https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bI
https://pkg.go.dev/vuln/GO-2025-4008
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-58189 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-58189 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-58189 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-58189 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Oct. 29, 2025

    Action Type Old Value New Value
    Added 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.
    Added Reference https://go.dev/cl/707776
    Added Reference https://go.dev/issue/75652
    Added Reference https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bI
    Added Reference https://pkg.go.dev/vuln/GO-2025-4008
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.