CVE-2025-58189 | BDVDB-2026-299979 Detail

Go standard librarycrypto/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.

Impact#

Per CVSS v3.1: confidentiality impact low, integrity impact none, availability impact none. Attack vector: network.

Weaknesses#

CWE-117 Improper Output Neutralization for Logs

References#

Exploit#

No public exploit known

History#

Version 12025-10-29Record published in the CVE List.
Version 22025-11-04Most recent update recorded in the CVE List.

Published

Published: 2025-10-29
Last modified: 2025-11-04

Vendor information

Vendor: Go standard library
Product: crypto/tls

All Go standard library vulnerabilities

Score

5.3 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 40.8.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 1.24.8
Fixed
1.24.8
Vulnerable
>= 1.25.0 and < 1.25.2
Fixed
1.25.2

Scoring System

CVSS v4.0

Not available

CVSS v3.1

5.3 Medium

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity	None
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).