CVE-2026-30836
Critical
Description
Step CA is an online certificate authority for secure, automated certificate management for DevOps. Versions 0.30.0-rc6 and below do not safeguard against unauthenticated certificate issuance through the SCEP UpdateReq. This issue has been fixed in version 0.30.0.
SeverityCritical
CVSS10.0
Exploit probability—
ProductSmallstep Step-ca
PublishedMar 19, 2026
First seenMar 19, 2026
Weakness typeCWE-287Improper authenticationCWE-295CWE-295
How to fix
Update
- smallstep step-ca0.30.0 or later
- github.com/smallstep/certificates0.30.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| smallstep step-ca | v < 0.30.0, 0.30.0 | 0.30.0 |
| github.com/smallstep/certificatesGo | v < 0.30.0 | 0.30.0 |
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