# CVE-2026-30836

## Summary

- **CVE ID:** CVE-2026-30836
- **Severity:** CRITICAL
- **CVSS Score:** 10 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N)
- **CWE:** CWE-287, CWE-295
- **Published:** Mar 19, 2026
- **Last Modified:** Mar 25, 2026

## 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.

## Affected Products

- smallstep — certificates (< 0.30.0)

## References

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

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.30%
- **EPSS Percentile:** 22.1

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._