GHSA-Q38V-WP89-2W55 sh _uid does not drop supplementary groups (incomplete privilege drop)

Impact The uid option performed an incomplete privilege drop on Linux/Unix-like systems. When sh was run from a process with elevated privileges, such as root, and a command was launched with uid=, the child process changed its UID and primary GID but did not reset its supplementary groups. As a...

sh _uid does not drop supplementary groups (incomplete privilege drop)

Impact The uid option performed an incomplete privilege drop on Linux/Unix-like systems. When sh was run from a process with elevated privileges, such as root, and a command was launched with uid=, the child process changed its UID and primary GID but did not reset its supplementary groups. As a...

PT-2026-60898

Name of the Vulnerable Software and Affected Versions sh versions prior to 2.2.4 Description A privilege management flaw exists on Linux/Unix-like systems where the uid option performs an incomplete privilege drop. When a privileged parent process spawns a child process using uid to reduce...

GHSA-55F6-4PR5-C7M5 Kahi has privilege-drop and socket/log permission issues

Kahi releases up to and including v0.1.0-alpha.8 contain three privilege/permission issues, all fixed in v0.1.0-alpha.9. They were identified in a full-codebase security review on 2026-05-26. Affected versions All releases = v0.1.0-alpha.8. Patched version v0.1.0-alpha.9. Details 1. Per-process...

CVE-2026-45250

The setcred2 system call is only available to privileged users. However, before the privilege level of the caller is checked, the user-supplied list of supplementary groups is copied into a fixed-size kernel stack buffer without first validating its length. If the supplied list exceeds the capaci...

CVE-2026-45250 Stack buffer overflow via setcred(2)

The setcred2 system call is only available to privileged users. However, before the privilege level of the caller is checked, the user-supplied list of supplementary groups is copied into a fixed-size kernel stack buffer without first validating its length. If the supplied list exceeds the capaci...

CVE-2026-45250 Stack buffer overflow via setcred(2)

The setcred2 system call is only available to privileged users. However, before the privilege level of the caller is checked, the user-supplied list of supplementary groups is copied into a fixed-size kernel stack buffer without first validating its length. If the supplied list exceeds the capaci...

Astra Linux – Vulnerability in docker.io

Moby is an open-source project created by Docker to enable software containerization. A bug was discovered in Moby Docker Engine where supplementary groups are not set up properly. If an attacker has direct access to a container and manipulates the supplementary group permissions, they may be abl...

Astra Linux – Vulnerability in Shadow

A vulnerability was discovered in Shadow 4.5. The newgidmap function part of shadow-utils is setuid, allowing an unprivileged user to be placed in a user namespace where setgroups2 is allowed. This enables an attacker to remove themselves from a supplementary group, potentially granting them acce...

Astra Linux – Vulnerability in Containerd

Containerd is an open-source container runtime. A bug was discovered in Containerd prior to versions 1.6.18 and 1.5.18, where supplementary groups were not set up properly within a container. If an attacker has direct access to a container and manipulates the supplementary group permissions, they...

FreeBSD Security Advisory - FreeBSD-SA-26:18.setcred

FreeBSD Security Advisory - The setcred2 system call is only available to privileged users. However, before the privilege level of the caller is checked, the user-supplied list of supplementary groups is copied into a fixed-size kernel stack buffer without first validating its length. If the...

FreeBSD -- Stack buffer overflow via setcred(2)

Problem Description: The setcred2 system call is only available to privileged users. However, before the privilege level of the caller is checked, the user-supplied list of supplementary groups is copied into a fixed-size kernel stack buffer without first validating its length. If the supplied li...

FreeBSD-SA-26:18.setcred

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:18.setcred Security Advisory The FreeBSD Project Topic: Stack buffer overflow via setcred2 Category: core Module: setcred Announced: 2026-05-20 Credits: Ryan...

NewStart CGSL MAIN 6.06 (SP) : docker-ce Vulnerability (NS-SA-2026-0028)

The remote NewStart CGSL host, running version MAIN 6.06 SP, has docker-ce packages installed that are affected by a vulnerability: - Moby is an open-source project created by Docker to enable software containerization. A bug was found in Moby Docker Engine where supplementary groups are not set ...

EUVD-2009-3545

Malware in sbrugna...

EUVD-2009-3570

Malware in sbrugna...

arpwatch 2.1a15, as used by Red Hat, Debian, Fedora, and possibly others, does not properly drop supplementary groups, which might allow attackers to gain root privileges by leveraging other vulnerabilities in the daemon.

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NewStart CGSL MAIN 6.06 : docker-ce Vulnerability (NS-SA-2025-0232)

The remote NewStart CGSL host, running version MAIN 6.06, has docker-ce packages installed that are affected by a vulnerability: - Moby is an open-source project created by Docker to enable software containerization. A bug was found in Moby Docker Engine where supplementary groups are not set up...

users may append `root` to group listings

Affected versions append root to group listings, unless the correct listing has exactly 1024 groups. This affects both: - The supplementary groups of a user - The group access list of the current process If the caller uses this information for access control, this may lead to privilege escalation...

CVE-2009-3589

incron 0.5.5 does not initialize supplementary groups when running a process from a user's incrontabs, which causes the process to be run with the incrond supplementary groups and allows local users to gain privileges via an incrontab table...