An attacker can bypass authorization checks and force a Step CA ACME or SCEP provisioner to create certificates without completing certain protocol authorization checks.
https://github.com/mjholder/cve-agent
https://blog.talosintelligence.com/libbiosig-grassroot-dicom-smallstep-step-ca-vulnerabilities/
https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2242
https://talosintelligence.com/vulnerability_reports/TALOS-2025-2242
https://github.com/smallstep/certificates/security/advisories/GHSA-h8cp-697h-8c8p
Published: 2025-12-17
Updated: 2026-04-15
Named Vulnerability: GO-2025-4180Named Vulnerability: GHSA-h8cp-697h-8c8p
Base Score: 9.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N
Severity: High
Base Score: 10
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Severity: Critical
EPSS: 0.09091