# CVE-2025-58187

## Summary

- **CVE ID:** CVE-2025-58187
- **Severity:** HIGH
- **CVSS Score:** 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
- **CWE:** N/A
- **Published:** Oct 29, 2025
- **Last Modified:** Sep 14, 2026

## Description

Due to the design of the name constraint checking algorithm, the processing time of some inputs scale non-linearly with respect to the size of the certificate. This affects programs which validate arbitrary certificate chains.

## Affected Products

- Go standard library — crypto/x509 (0)
- Go standard library — crypto/x509 (1.25.0)

## References

- [CNA](https://go.dev/issue/75681)
- [CNA](https://go.dev/cl/709854)
- [CNA](https://groups.google.com/g/golang-announce/c/4Emdl2iQ_bI)
- [CNA](https://pkg.go.dev/vuln/GO-2025-4007)
- [CVE](http://www.openwall.com/lists/oss-security/2025/10/08/1)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.38%
- **EPSS Percentile:** 31.5

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._