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CVE-2026-32281

HIGH

7.5

Description

Validating certificate chains which use policies is unexpectedly inefficient when certificates in the chain contain a very large number of policy mappings, possibly causing denial of service. This only affects validation of otherwise trusted certificate chains, issued by a root CA in the VerifyOptions.Roots CertPool, or in the system certificate pool.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published4/8/2026

Last Modified4/16/2026

Sourcenvd

Honeypot Sightings0

Affected Products

golang:go

Weaknesses (CWE)

CWE-295

References

https://go.dev/cl/758061(security@golang.org)

https://go.dev/issue/78281(security@golang.org)

https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU(security@golang.org)

https://pkg.go.dev/vuln/GO-2026-4946(security@golang.org)

IOC Correlations

No correlations recorded

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