CVE-2026-32281

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://go.dev/cl/758061	Patch
https://go.dev/issue/78281	Issue Tracking
https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU	Issue Tracking Release Notes
https://pkg.go.dev/vuln/GO-2026-4946	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:golang:go::::::::
	cpe:2.3:a:golang:go::::::::

History

No history.

Information

Published : 2026-04-08 02:16

Updated : 2026-07-25 10:10

NVD link : CVE-2026-32281

Mitre link : CVE-2026-32281

CVE.ORG link : CVE-2026-32281

JSON object : View

Products Affected

golang

go

CWE

CWE-295

Improper Certificate Validation

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