Back to Database
Status published
Unknown
CVE-2025-58189
ALPN negotiation error contains attacker controlled information in crypto/tls
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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2025-58189
Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- National Cyber Security Centre Finland
References
More from Go standard library
View All →CVE-2025-68121
Unexpected session resumption in crypto/tls
Unknown
0
CVE-2025-61730
Handshake messages may be processed at the incorrect encryption level in crypto/tls
Unknown
0
CVE-2025-61729
Excessive resource consumption when printing error string for host certificate validation in crypto/x509
Unknown
0
CVE-2025-61728
Excessive CPU consumption when building archive index in archive/zip
Unknown
0
CVE-2025-61727
Improper application of excluded DNS name constraints when verifying wildcard names in crypto/x509
Unknown
0
Affected Vendor
Go standard library
View all reports →Affected Software
crypto/tls
Vulnerable Versions:
0, 1.25.0
Timeline
Official Publish:
October 29th, 2025
Last Modified:
November 4th, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
No vector data available
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.