Rekor is a software supply chain transparency log. In versions 1.4.3 and below, the entry implementation can panic on attacker-controlled input when canonicalizing a proposed entry with an empty spec.message, causing nil Pointer Dereference. Function validate() returns nil (success) when message is empty, leaving sign1Msg uninitialized, and Canonicalize() later dereferences v.sign1Msg.Payload. A malformed proposed entry of the cose/v0.0.1 type can cause a panic on a thread within the Rekor process. The thread is recovered so the client receives a 500 error message and service still continues, so the availability impact of this is minimal. This issue has been fixed in version 1.5.0.

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-6b87863841 advisory.

    Upstream release 2.98.0. https://github.com/jfrog/jfrog-cli/releases/tag/v2.98.0

    Resolves the following security issues:
    CVE-2025-11579     CVE-2025-66564     CVE-2026-23831     CVE-2026-23991     CVE-2026-23992     CVE-2026-24117     CVE-2026-24137     CVE-2026-24686     CVE-2026-32285     CVE-2026-33762     CVE-2026-34165     CVE-2026-34986

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 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.

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

  - Rekor is a software supply chain transparency log. In versions 1.4.3 and below, the entry implementation
    can panic on attacker-controlled input when canonicalizing a proposed entry with an empty spec.message,
    causing nil Pointer Dereference. Function validate() returns nil (success) when message is empty, leaving
    sign1Msg uninitialized, and Canonicalize() later dereferences v.sign1Msg.Payload. A malformed proposed
    entry of the cose/v0.0.1 type can cause a panic on a thread within the Rekor process. The thread is
    recovered so the client receives a 500 error message and service still continues, so the availability
    impact of this is minimal. This issue has been fixed in version 1.5.0. (CVE-2026-23831)

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, the entry implementation     can panic on attacker-controlled input when canonicalizing a proposed entry with an empty spec.message,     causing nil Pointer Dereference. Function validate() returns nil (success) when message is empty, leaving     sign1Msg uninitialized, and Canonicalize() later dereferences v.sign1Msg.Payload. A malformed proposed     entry of the cose/v0.0.1 type can cause a panic on a thread within the Rekor process. The thread is     recovered so the client receives a 500 error message and service still continues, so the availability     impact of this is minimal. This issue has been fixed in version 1.5.0. (CVE-2026-23831)

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

ID	Name	Product	Family	Severity
311385	Fedora 44 : jfrog-cli (2026-6b87863841)	Nessus	Fedora Local Security Checks	high
301422	Fedora 42 : gh (2026-de52e7caa1)	Nessus	Fedora Local Security Checks	high
300473	Fedora 43 : gh (2026-21a2f3709a)	Nessus	Fedora Local Security Checks	high
436907	SCA: security update for github.com/sigstore/rekor (GHSA-273p-m2cw-6833)	Tenable Cloud Security	SCA Checks	medium
436907	SCA: security update for github.com/sigstore/rekor (GHSA-273p-m2cw-6833)	Tenable Self-Hosted Container Security	SCA Checks	medium
296220	Linux Distros Unpatched Vulnerability : CVE-2026-23831	Nessus	Misc.	medium

Detections

Analytics

CVE-2026-23831

medium

Tenable Plugins

high

high

high

medium

medium

medium