An attacker can bypass authorization checks and force a Step CA ACME or SCEP provisioner to create certificates without completing certain protocol authorization checks.

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-950cac64f2 advisory.

    Security update resolving 17 CVEs across both caddy itself and its vendored libraries.

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-3dc324bd9a advisory.

    Security update resolving 22 CVEs across both caddy itself and its vendored libraries.

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the eca46635-db51-11f0-9b8d-40a6b7c3b3b8 advisory.

    smallstep reports:
    An attacker can bypass authorization checks and force a Step CA               ACME or SCEP provisioner to create certificates without completing               certain protocol authorization checks.

Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

  - An attacker can bypass authorization checks and force a Step CA ACME or SCEP provisioner to create
    certificates without completing certain protocol authorization checks. (CVE-2025-44005)

  - Step CA is an online certificate authority for secure, automated certificate management for DevOps. Prior
    to 0.29.0, there is an improper authorization check for SSH certificate revocation. This affects
    deployments configured with the SSHPOP provisioner. This vulnerability is fixed in 0.29.0.
    (CVE-2025-66406)

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - An attacker can bypass authorization checks and force a Step CA ACME or SCEP provisioner to create
    certificates without completing certain protocol authorization checks. (CVE-2025-44005)

ID	Name	Product	Family	Severity
324621	Fedora 44 : caddy (2026-950cac64f2)	Nessus	Fedora Local Security Checks	critical
324614	Fedora 43 : caddy (2026-3dc324bd9a)	Nessus	Fedora Local Security Checks	critical
279034	FreeBSD : step-certificates -- Authorization Bypass in ACME and SCEP Provisioners (eca46635-db51-11f0-9b8d-40a6b7c3b3b8)	Nessus	FreeBSD Local Security Checks	critical
436255	Alpine: multiple step-certificates packages: security update to 0.29.0-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	critical
436255	Alpine: multiple step-certificates packages: security update to 0.29.0-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	critical
436198	SCA: security update for github.com/smallstep/certificates (GHSA-h8cp-697h-8c8p)	Tenable Cloud Security	SCA Checks	critical
436198	SCA: security update for github.com/smallstep/certificates (GHSA-h8cp-697h-8c8p)	Tenable Self-Hosted Container Security	SCA Checks	critical

Detections

Analytics

CVE-2025-44005

critical

Tenable Plugins

critical

critical

critical

critical

critical

critical

critical