CVE-2026-42508

critical

Description

Previously, a revoked 'SignatureKey' belonging to a CA was not correctly checked for revocation. Now, both the 'key' and 'key.SignatureKey' are checked for @revoked.

References

https://pkg.go.dev/vuln/GO-2026-5021

https://groups.google.com/g/golang-announce/c/a082jnz-LvI

https://go.dev/issue/79568

https://go.dev/cl/781220

Details

Source: Mitre, NVD

Published: 2026-05-22

Updated: 2026-05-22

Risk Information

CVSS v2

Base Score: 7.5

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

Severity: High

CVSS v3

Base Score: 9.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Severity: Critical

Detections

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