CVE-2026-42508

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://github.com/shinigami-777/PoC-Collection

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42508.json

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

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-31399

https://bugzilla.redhat.com/show_bug.cgi?id=2480688

https://access.redhat.com/security/cve/CVE-2026-42508

https://access.redhat.com/errata/RHSA-2026:67450

https://access.redhat.com/errata/RHSA-2026:66521

https://access.redhat.com/errata/RHSA-2026:66022

https://access.redhat.com/errata/RHSA-2026:65126

https://access.redhat.com/errata/RHSA-2026:61314

https://access.redhat.com/errata/RHSA-2026:60520

https://access.redhat.com/errata/RHSA-2026:59467

https://access.redhat.com/errata/RHSA-2026:57194

https://access.redhat.com/errata/RHSA-2026:54400

https://access.redhat.com/errata/RHSA-2026:52910

https://access.redhat.com/errata/RHSA-2026:52857

https://access.redhat.com/errata/RHSA-2026:51288

https://access.redhat.com/errata/RHSA-2026:51033

https://access.redhat.com/errata/RHSA-2026:49944

https://access.redhat.com/errata/RHSA-2026:47737

https://access.redhat.com/errata/RHSA-2026:47735

https://access.redhat.com/errata/RHSA-2026:46885

https://access.redhat.com/errata/RHSA-2026:43692

https://access.redhat.com/errata/RHSA-2026:43052

https://access.redhat.com/errata/RHSA-2026:42796

https://access.redhat.com/errata/RHSA-2026:42146

https://access.redhat.com/errata/RHSA-2026:41066

https://access.redhat.com/errata/RHSA-2026:41064

https://access.redhat.com/errata/RHSA-2026:41036

https://access.redhat.com/errata/RHSA-2026:41031

https://access.redhat.com/errata/RHSA-2026:41019

https://access.redhat.com/errata/RHSA-2026:40945

https://access.redhat.com/errata/RHSA-2026:40262

https://access.redhat.com/errata/RHSA-2026:40118

https://access.redhat.com/errata/RHSA-2026:37387

https://access.redhat.com/errata/RHSA-2026:37123

https://access.redhat.com/errata/RHSA-2026:37072

https://access.redhat.com/errata/RHSA-2026:36808

https://access.redhat.com/errata/RHSA-2026:36797

https://access.redhat.com/errata/RHSA-2026:36796

https://access.redhat.com/errata/RHSA-2026:36651

https://access.redhat.com/errata/RHSA-2026:36648

https://access.redhat.com/errata/RHSA-2026:35833

https://access.redhat.com/errata/RHSA-2026:26547

https://access.redhat.com/errata/RHSA-2026:26546

https://access.redhat.com/errata/RHSA-2026:23264

https://access.redhat.com/errata/RHSA-2026:23262

Details

Source: Mitre, NVD

Named Vulnerability: GO-2026-5021Named Vulnerability: GHSA-5cgq-3rg8-m6cv

Risk Information

CVSS v2

CVSS v3

EPSS