CVE-2026-42508: golang.org/x/crypto vulnerable to auth bypass via unenforced @revoked status
(updated )
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
- access.redhat.com/errata/RHSA-2026:23262
- access.redhat.com/errata/RHSA-2026:23264
- access.redhat.com/errata/RHSA-2026:26546
- access.redhat.com/errata/RHSA-2026:26547
- access.redhat.com/errata/RHSA-2026:35833
- access.redhat.com/errata/RHSA-2026:36648
- access.redhat.com/errata/RHSA-2026:36651
- access.redhat.com/errata/RHSA-2026:36796
- access.redhat.com/errata/RHSA-2026:36797
- access.redhat.com/errata/RHSA-2026:36808
- access.redhat.com/errata/RHSA-2026:37072
- access.redhat.com/errata/RHSA-2026:37123
- access.redhat.com/errata/RHSA-2026:37387
- access.redhat.com/errata/RHSA-2026:40118
- access.redhat.com/errata/RHSA-2026:40138
- access.redhat.com/errata/RHSA-2026:40262
- access.redhat.com/errata/RHSA-2026:40945
- access.redhat.com/errata/RHSA-2026:41019
- access.redhat.com/errata/RHSA-2026:41031
- access.redhat.com/errata/RHSA-2026:41036
- access.redhat.com/errata/RHSA-2026:41064
- access.redhat.com/errata/RHSA-2026:41066
- access.redhat.com/security/cve/CVE-2026-42508
- bugzilla.redhat.com/show_bug.cgi?id=2480688
- github.com/advisories/GHSA-5cgq-3rg8-m6cv
- go.dev/cl/781220
- go.dev/issue/79568
- groups.google.com/g/golang-announce/c/a082jnz-LvI
- nvd.nist.gov/vuln/detail/CVE-2026-42508
- pkg.go.dev/vuln/GO-2026-5021
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42508.json
Code Behaviors & Features
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