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

  - Oj (Optimized JSON) is a JSON parser and Object marshaller packaged as a Ruby gem. Prior to 3.17.2,
    Oj::Doc iterators (each_value, each_child, each_leaf) were vulnerable to a heap use-after-free. When a
    Ruby block yielded during iteration calls doc.close or d.close, the document's heap memory is freed while
    the C iterator is still running. When control returns from the block, the iterator reads from the freed
    region, producing a use-after-free accessible from pure Ruby. This issue has been fixed in version 3.17.2.
    (CVE-2026-54897)

The remote Debian 12 host has a package installed that is affected by multiple vulnerabilities as referenced in the dla-4803 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4803-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                        Simon Quigley     September 30, 2026                            https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : ruby-oj     Version        : 3.14.2-1+deb12u1     CVE ID         : CVE-2026-54500 CVE-2026-54502 CVE-2026-54592 CVE-2026-54896                      CVE-2026-54897 CVE-2026-54898 CVE-2026-54899 CVE-2026-54900                      CVE-2026-54901 CVE-2026-54902 CVE-2026-54903

    Multiple security vulnerabilities were discovered in Oj, a fast JSON     parser and serializer for Ruby, which could result in denial of service     or memory disclosure.

    For Debian 12 bookworm, these problems have been fixed in version     3.14.2-1+deb12u1.

    We recommend that you upgrade your ruby-oj packages.

    For the detailed security status of ruby-oj please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/ruby-oj

    Further information about Debian LTS security advisories, how to apply     these updates to your system, and frequently asked questions can be     found at: https://wiki.debian.org/LTS

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

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

An update of the rubygem package has been released.

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

  - Oj (Optimized JSON) is a JSON parser and Object marshaller packaged as a Ruby gem. Prior to 3.17.2,     Oj::Doc iterators (each_value, each_child, each_leaf) were vulnerable to a heap use-after-free. When a     Ruby block yielded during iteration calls doc.close or d.close, the document's heap memory is freed while     the C iterator is still running. When control returns from the block, the iterator reads from the freed     region, producing a use-after-free accessible from pure Ruby. This issue has been fixed in version 3.17.2.
    (CVE-2026-54897)

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

ID	Name	Product	Family	Published	Updated	Severity
443712	SCA: security update for oj (GHSA-9ppp-w3g4-fh4q)	Tenable Self-Hosted Container Security	SCA Checks	6/20/2026	10/7/2026	low
443712	SCA: security update for oj (GHSA-9ppp-w3g4-fh4q)	Tenable Cloud Security	SCA Checks	6/20/2026	10/7/2026	low
353437	Debian dla-4803 : ruby-oj - security update	Nessus	Debian Local Security Checks	9/30/2026	9/30/2026	medium
325969	Photon OS 4.0: Rubygem PHSA-2026-4.0-1052	Nessus	PhotonOS Local Security Checks	7/9/2026	11/2/2026	high
324673	Linux Distros Unpatched Vulnerability : CVE-2026-54897	Nessus	Misc.	7/2/2026	11/6/2026	low
332369	Photon OS 5.0: Rubygem PHSA-2026-5.0-92-0917	Nessus	PhotonOS Local Security Checks	8/5/2026	11/2/2026	medium
325967	Photon OS 5.0: Rubygem PHSA-2026-5.0-0917	Nessus	PhotonOS Local Security Checks	7/9/2026	10/14/2026	medium

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