Certificate Chain Validation Issues in Go Programming Language
CVE-2025-58187

7.5HIGH

Key Information:

Vendor

Go Standard Library

Status
Crypto/x509
Vendor
CVE Published:
29 October 2025

What is CVE-2025-58187?

The vulnerability in the Go programming language arises from inefficient processing in the name constraint checking algorithm, leading to non-linear scaling of processing time based on certificate size. This flaw can impact applications that validate arbitrary certificate chains, potentially exposing them to performance-related attacks or delays during validation.

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Affected Version(s)

crypto/x509 0 < 1.24.9

crypto/x509 1.25.0 < 1.25.3

References

https://go.dev/issue/75681
https://go.dev/cl/709854
https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bI

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Jakub Ciolek
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