CVE-2026-30836

CRITICAL EPSS 21.3%
Published Mar 19, 20263mo ago · Modified Jun 17, 20262w ago
10.0 CVSS 3.1
Critical
Find Similar
Published Mar 19, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
10.0
Exploitability
3.9
Impact
5.8
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Changed
Confidentiality High
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
21.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 2

CWE-287 Improper Authentication Authentication
CWE-295

Affected Products 7

VendorProductVersionRange
smallstepstep-ca* <0.30.0
smallstepstep-ca0.30.0any
smallstepstep-ca0.30.0any
smallstepstep-ca0.30.0any
smallstepstep-ca0.30.0any
smallstepstep-ca0.30.0any
smallstepstep-ca0.30.0any

References 3

  • github.com https://github.com/smallstep/certificates/commit/e6da031d5125cfd99fe9a26f74bb41e4dacca4ef
    Patch
  • github.com https://github.com/smallstep/certificates/releases/tag/v0.30.0-rc7
    Release Notes
  • github.com https://github.com/smallstep/certificates/security/advisories/GHSA-q4r8-xm5f-56gw
    Vendor Advisory

Remediation

  • github.com https://github.com/smallstep/certificates/commit/e6da031d5125cfd99fe9a26f74bb41e4dacca4ef
    Patch