CVE-2026-42508
critical
CVSS v3
9.1
CVSS v4 NEW
—
VIR risk
9.1
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.
Predictions
Exploit likelihood
94%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Windows Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Mixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Affected | — |
| sid | Fixed | 1:0.52.0-1 |
| forky | Fixed | 1:0.52.0-1 |
| bullseye | Affected | — |
| bookworm | Affected | — |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | golang.org/x/crypto | <0.52.0 | 0.52.0 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| golang | crypto | {"endExcluding":"0.52.0"} | 0.52.0 |
References
- https://go.dev/cl/781220
- https://go.dev/issue/79568
- https://groups.google.com/g/golang-announce/c/a082jnz-LvI
- https://pkg.go.dev/vuln/GO-2026-5021
- https://security-tracker.debian.org/tracker/CVE-2026-42508
- https://www.suse.com/security/cve/CVE-2026-42508.html
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42508
CWEs
CWE-295
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.