CVE-2026-30836

critical · 10

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.

CVSS

0.3%

EPSS (exploit prob.)

23rd

EPSS percentile

2026-03-19

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

Weaknesses

CWE-287CWE-295

Affected products

Vendor	Product	Affected versions
smallstep	step-ca	< 0.30.0
smallstep	step-ca	0.30.0
smallstep	step-ca	0.30.0
smallstep	step-ca	0.30.0
smallstep	step-ca	0.30.0
smallstep	step-ca	0.30.0
smallstep	step-ca	0.30.0

Check a specific version with /api/v1/cve/match.

References

https://github.com/smallstep/certificates/commit/e6da031d5125cfd99fe9a26f74bb41e4dacca4ef
https://github.com/smallstep/certificates/releases/tag/v0.30.0-rc7
https://github.com/smallstep/certificates/security/advisories/GHSA-q4r8-xm5f-56gw

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-30836