A flaw was found in yggdrasil-worker-package-manager. An authenticated attacker can exploit this issue to achieve arbitrary file modification or potential privilege escalation. The vulnerability exists because repository management operations fail to sanitize directory traversal sequences (such as '../') within repository names. By supplying a crafted repository name, an attacker can manipulate the root-level worker process into creating or deleting files outside the intended directory, compromising host system integrity.

The remote RockyLinux 10 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:96082 advisory.

    * yggdrasil-worker-package-manager: yggdrasil-worker-package-manager: path traversal via unsanitized repo     name in AddRepo/RemoveRepo (CVE-2026-18379)

Tenable has extracted the preceding description block directly from the RockyLinux 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.

  - A flaw was found in yggdrasil-worker-package-manager. An authenticated attacker can exploit this issue to     achieve arbitrary file modification or potential privilege escalation. The vulnerability exists because     repository management operations fail to sanitize directory traversal sequences (such as '../') within     repository names. By supplying a crafted repository name, an attacker can manipulate the root-level worker     process into creating or deleting files outside the intended directory, compromising host system     integrity. (CVE-2026-18379)

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

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:96082 advisory.

    yggdrasil-worker-package-manager is a simple package manager yggd worker. It knows how to install and     remove packages, add, remove, enable and disable repositories, and does rudimentary detection of the host     it is running on to guess the package manager to use. It only installs packages that match one of the     provided allow-pattern regular expressions.

    Security Fix(es):

    * yggdrasil-worker-package-manager: yggdrasil-worker-package-manager: path traversal via unsanitized repo     name in AddRepo/RemoveRepo (CVE-2026-18379)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

ID	Name	Product	Family	Type	Severity
380042	RockyLinux 10 : yggdrasil-worker-package-manager (RLSA-2026:96082)	Nessus	Rocky Linux Local Security Checks	Local	high
379945	Linux Distros Unpatched Vulnerability : CVE-2026-18379	Nessus	Misc.	Local	high
379905	RHEL 10 : yggdrasil-worker-package-manager (RHSA-2026:96082)	Nessus	Red Hat Local Security Checks	Local	high

Detections

Analytics

CVE-2026-18379

high

Tenable Plugins

high

high

high