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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-32280

Unexpected work during chain building in crypto/x509

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Status
Published
Published
Updated
Assigning organization
Go

Description

During chain building, the amount of work that is done is not correctly limited when a large number of intermediate certificates are passed in VerifyOptions.Intermediates, which can lead to a denial of service. This affects both direct users of crypto/x509 and users of crypto/tls.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Go standard library crypto/x509

Default version status: unaffected

  • 0 to < 1.25.9affected
  • 1.26.0-0 to < 1.26.2affected

References