CVE-2026-30836CRITICAL 10.0EPSS p21.1%

CVE-2026-30836CVE-2026-30836

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.

Scoring

CVSS 3.110.0 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
EPSS0.30% probability of exploitation · percentile 21.1% · 2026-06-18T12:00:27Z
Published2026-03-19
Last modified2026-04-27

Underlying weaknesses· 2

CWE-287CWE-295

References

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

2

TypeTargetConfidenceTier
WeaknessImproper Authenticationcwe-2870%live
WeaknessImproper Certificate Validationcwe-2950%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.