Unrated severityNVD Advisory· Published Oct 29, 2025· Updated Nov 20, 2025

Quadratic complexity when checking name constraints in crypto/x509

CVE-2025-58187

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/x509v5
Range: 0

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

go.dev/cl/709854mitre
go.dev/issue/75681mitre
groups.google.com/g/golang-announce/c/4Emdl2iQ_bImitre
pkg.go.dev/vuln/GO-2025-4007mitre

News mentions

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