CVE-2026-32280

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.

PUBLISHED Reserved 2026-03-11 | Published 2026-04-08 | Updated 2026-04-08 | Assigner Go

Problem types

CWE-770: Allocation of Resources Without Limits or Throttling

Product status

Credits

Jakub Ciolek - https://ciolek.dev

References

go.dev/cl/758320

go.dev/issue/78282

groups.google.com/g/golang-announce/c/0uYbvbPZRWU

pkg.go.dev/vuln/GO-2026-4947

cve.org (CVE-2026-32280)

nvd.nist.gov (CVE-2026-32280)

Download JSON