CVE-2026-30836 (GCVE-0-2026-30836)

Vulnerability from cvelistv5 – Published: 2026-03-19 20:37 – Updated: 2026-03-25 14:16
VLAI?
Title
Step CA: Unauthenticated Certificate Issuance via SCEP UpdateReq (MessageType=18)
Summary
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.
Severity ?
10 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
CWE
  • CWE-287 - Improper Authentication
  • CWE-295 - Improper Certificate Validation
Assigner
References
Impacted products
Vendor Product Version
smallstep certificates Affected: < 0.30.0
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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