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

  - In the opam package before 2.5.2 for OCaml, the sandbox protection mechanism can be bypassed because
    symlinks are mishandled during use of .install files. (CVE-2026-57825)

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-fb48505840 advisory.

    Version 2.5.2 of opam fixes CVE-2026-57825.  See https://github.com/ocaml/opam/releases/tag/2.5.2 for more     information.


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

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

The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-239dbbff34 advisory.

    Version 2.5.2 of opam fixes CVE-2026-57825.  See https://github.com/ocaml/opam/releases/tag/2.5.2 for more     information.


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

Note that Nessus has not tested for this issue 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 b478ff13-7f6e-11f1-b594-3c7c3fba4204 advisory.

    The OCaml Team reports:
    Installing files through .install files do not check symlinks resolution of the target path, and so can     bypass sandboxing.
    Credits:
                Reporter: Kate Deplaix                 Remediation Developer: Nathan Rebours                 Remediation Reviewer: Raja Boujbel                 Coordinator: Hannes Mehnert


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.

The remote Debian 12 host has packages installed that are affected by a vulnerability as referenced in the dla-4684 advisory.

    - -----------------------------------------------------------------------     Debian LTS Advisory DLA-4684-1              debian-lts@lists.debian.org     https://www.debian.org/lts/security/                      Utkarsh Gupta     July 15, 2026                               https://wiki.debian.org/LTS
    - -----------------------------------------------------------------------

    Package        : opam     Version        : 2.1.2-1+deb12u2     CVE ID         : CVE-2026-57825

    Kate Deplaix reported that .install file directives were insufficiently     restricted in OPAM, a package manager for OCaml. Installing files     through .install files did not check symlinks resolution on the target     path, which could result in directory traversal out of the package area.

    For Debian 12 bookworm, this problem has been fixed in version     2.1.2-1+deb12u2.

    We recommend that you upgrade your opam packages.

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

    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 this issue but has instead relied only on the application's self-reported version number.

The remote Debian 13 host has packages installed that are affected by a vulnerability as referenced in the dsa-6386 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6386-1                   security@debian.org     https://www.debian.org/security/                     Salvatore Bonaccorso     July 10, 2026                         https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : opam     CVE ID         : CVE-2026-57825

    Kate Deplaix reported that .install file directives were insufficiently     restricted in OPAM, a package manager for OCaml. Installing files     through .install files did not check symlinks resolution on the target     path, which could result in directory traversal out of the package area.

    For the stable distribution (trixie), this problem has been fixed in     version 2.3.0-1+deb13u2.

    We recommend that you upgrade your opam packages.

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

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

    Mailing list: debian-security-announce@lists.debian.org

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

Note that Nessus has not tested for this issue 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.

  - In the opam package before 2.5.2 for OCaml, the sandbox protection mechanism can be bypassed because     symlinks are mishandled during use of .install files. (CVE-2026-57825)

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

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21380-1 advisory.

    Changes in opam:

    - Update to version 2.5.2 (CVE-2026-57825)       see included CHANGES file for details

    - Update to version 2.5.1 (CVE-2026-41082 bsc#1262281)       see included CHANGES file for details

    - Update to version 2.5.0       see included CHANGES file for details

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

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

ID	Name	Product	Family	Published	Updated	Severity
444862	Alpine: multiple opam packages: security update to 2.5.2-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	7/20/2026	9/9/2026	medium
444862	Alpine: multiple opam packages: security update to 2.5.2-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	7/20/2026	9/9/2026	medium
327801	Fedora 43 : opam (2026-fb48505840)	Nessus	Fedora Local Security Checks	7/19/2026	7/19/2026	critical
327808	Fedora 44 : opam (2026-239dbbff34)	Nessus	Fedora Local Security Checks	7/19/2026	7/19/2026	critical
326807	FreeBSD : ocaml-opam -- opam install sandbox escape using symlinks (b478ff13-7f6e-11f1-b594-3c7c3fba4204)	Nessus	FreeBSD Local Security Checks	7/14/2026	7/14/2026	critical
326926	Debian dla-4684 : opam - security update	Nessus	Debian Local Security Checks	7/15/2026	7/15/2026	critical
326345	Debian dsa-6386 : opam - security update	Nessus	Debian Local Security Checks	7/10/2026	9/11/2026	medium
325985	Linux Distros Unpatched Vulnerability : CVE-2026-57825	Nessus	Misc.	7/9/2026	9/11/2026	medium
328917	openSUSE 16 Security Update : opam (openSUSE-SU-2026:21380-1)	Nessus	SuSE Local Security Checks	7/22/2026	7/22/2026	high

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