sh provides Python process launching. Prior to 2.2.4, the _uid option in sh.py performs an incomplete privilege drop on Linux and Unix-like systems. When sh runs from an elevated process and launches a command with _uid set to an unprivileged user, the child changes its UID but can retain the parent process's supplementary groups because the privilege-drop sequence does not fully establish the target user's UID, primary GID, and supplementary groups. The child can therefore retain access to files or resources granted to privileged groups such as root, docker, disk, shadow, or sudo, violating the expected _uid privilege boundary. This issue is fixed in version 2.2.4.

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

  - sh provides Python process launching. Prior to 2.2.4, the _uid option in sh.py performs an incomplete     privilege drop on Linux and Unix-like systems. When sh runs from an elevated process and launches a     command with _uid set to an unprivileged user, the child changes its UID but can retain the parent     process's supplementary groups because the privilege-drop sequence does not fully establish the target     user's UID, primary GID, and supplementary groups. The child can therefore retain access to files or     resources granted to privileged groups such as root, docker, disk, shadow, or sudo, violating the expected
    _uid privilege boundary. This issue is fixed in version 2.2.4. (CVE-2026-54552)

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

The remote openSUSE 16 host has a package installed that is affected by a vulnerability as referenced in the openSUSE- SU-2026:21516-1 advisory.

    This update for python-sh fixes the following issue

    - CVE-2026-54552: `_uid` option performs an incomplete privilege drop on Linux/Unix-like systems and     allows       for privilege escalation (bsc#1272424).

Tenable has extracted the preceding description block directly from the SUSE 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 SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2026:3422-1 advisory.

    - CVE-2026-54552: incomplete privilege drop in the _uid option can allow a subprocess to retain parent     supplementary       groups (bsc#1272424).

Tenable has extracted the preceding description block directly from the SUSE 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
338844	Linux Distros Unpatched Vulnerability : CVE-2026-54552	Nessus	Misc.	Local	high
332107	openSUSE 16 Security Update : python-sh (openSUSE-SU-2026:21516-1)	Nessus	SuSE Local Security Checks	Local	high
331415	SUSE SLED15 / SLES15 Security Update : python-sh (SUSE-SU-2026:3422-1)	Nessus	SuSE Local Security Checks	Local	high

Detections

Analytics

CVE-2026-54552

high

Tenable Plugins

high

high

high