CVE-2026-32280

high

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.

References

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

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

https://go.dev/issue/78282

https://go.dev/cl/758320

Details

Source: Mitre, NVD

Published: 2026-04-08

Updated: 2026-04-08

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 7.5

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

Severity: High

EPSS

EPSS: 0.00007