Rekor is a software supply chain transparency log. In versions 1.4.3 and below, attackers can trigger SSRF to arbitrary internal services because /api/v1/index/retrieve supports retrieving a public key via user-provided URL. Since the SSRF only can trigger GET requests, the request cannot mutate state. The response from the GET request is not returned to the caller so data exfiltration is not possible. A malicious actor could attempt to probe an internal network through Blind SSRF. The issue has been fixed in version 1.5.0. To workaround this issue, disable the search endpoint with --enable_retrieve_api=false.

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-de52e7caa1 advisory.

    Update to 2.87.3

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-2026-21a2f3709a advisory.

    Update to 2.87.0



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 Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Rekor is a software supply chain transparency log. In versions 1.4.3 and below, attackers can trigger SSRF     to arbitrary internal services because /api/v1/index/retrieve supports retrieving a public key via user-     provided URL. Since the SSRF only can trigger GET requests, the request cannot mutate state. The response     from the GET request is not returned to the caller so data exfiltration is not possible. A malicious actor     could attempt to probe an internal network through Blind SSRF. The issue has been fixed in version 1.5.0.
    To workaround this issue, disable the search endpoint with --enable_retrieve_api=false. (CVE-2026-24117)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
301422	Fedora 42 : gh (2026-de52e7caa1)	Nessus	Fedora Local Security Checks	high
300473	Fedora 43 : gh (2026-21a2f3709a)	Nessus	Fedora Local Security Checks	high
296264	Linux Distros Unpatched Vulnerability : CVE-2026-24117	Nessus	Misc.	medium

Detections

Analytics

CVE-2026-24117

medium

Tenable Plugins

high

high

medium