CVE-2025-58187

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.

CVSS 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

0.4% chance of exploitation in the next 30 days; higher than 34% of CVEs (scores of 2026-10-25)

CWE

CWE-407

Published

2025-10-29

Modified

2026-10-08

Record from

the NVD, synced 2026-10-19

Affected

• golang:go

Packages (OSV)

References

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

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