CVE-2026-93658

A flaw was found in uutils coreutils. When installing files, the software applies setuid or setgid permissions before finalizing ownership changes. This can allow a privileged user to inadvertently leave behind executable files with elevated privileges if the ownership change operation fails on...

Linux Distros Unpatched Vulnerability : CVE-2026-93658

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - uutils coreutils versions before 0.10.0 apply setuid or setgid mode to install destinations before finalizing ownership changes, allowing privileged users to...

DEBIAN-CVE-2026-93658

uutils coreutils versions before 0.10.0 apply setuid or setgid mode to install destinations before finalizing ownership changes, allowing privileged users to leave setuid executables owned by the privileged invoker when ownership changes fail. Attackers can execute leftover setuid files with...

CVE-2026-93658

uutils coreutils versions before 0.10.0 apply setuid or setgid mode to install destinations before finalizing ownership changes, allowing privileged users to leave setuid executables owned by the privileged invoker when ownership changes fail. Attackers can execute leftover setuid files with...

CVE-2026-93658

uutils coreutils versions before 0.10.0 apply setuid or setgid mode to install destinations before finalizing ownership changes, allowing privileged users to leave setuid executables owned by the privileged invoker when ownership changes fail. Attackers can execute leftover setuid files with...

UBUNTU-CVE-2026-93658

uutils coreutils versions before 0.10.0 apply setuid or setgid mode to install destinations before finalizing ownership changes, allowing privileged users to leave setuid executables owned by the privileged invoker when ownership changes fail. Attackers can execute leftover setuid files with...

CVE-2026-93658

uutils coreutils versions from 0.0.18 before 0.10.0 contain a privilege escalation vulnerability in the install command. The root cause is that setuid or setgid mode is applied to the install destination before ownership changes are finalized. On capability-restricted systems , if the ownership c...

CVE-2026-93658 uutils coreutils 0.0.18 before 0.10.0 Privilege Escalation via setuid

uutils coreutils versions before 0.10.0 apply setuid or setgid mode to install destinations before finalizing ownership changes, allowing privileged users to leave setuid executables owned by the privileged invoker when ownership changes fail. Attackers can execute leftover setuid files with...

EUVD-2026-82940

uutils coreutils versions before 0.10.0 apply setuid or setgid mode to install destinations before finalizing ownership changes, allowing privileged users to leave setuid executables owned by the privileged invoker when ownership changes fail. Attackers can execute leftover setuid files with...

CVE-2026-93658 uutils coreutils 0.0.18 before 0.10.0 Privilege Escalation via setuid

uutils coreutils versions before 0.10.0 apply setuid or setgid mode to install destinations before finalizing ownership changes, allowing privileged users to leave setuid executables owned by the privileged invoker when ownership changes fail. Attackers can execute leftover setuid files with...

CVE-2026-93658 uutils coreutils 0.0.18 before 0.10.0 Privilege Escalation via setuid

uutils coreutils versions before 0.10.0 apply setuid or setgid mode to install destinations before finalizing ownership changes, allowing privileged users to leave setuid executables owned by the privileged invoker when ownership changes fail. Attackers can execute leftover setuid files with...

CVE-2026-93658

uutils coreutils versions before 0.10.0 apply setuid or setgid mode to install destinations before finalizing ownership changes, allowing privileged users to leave setuid executables owned by the privileged invoker when ownership changes fail. Attackers can execute leftover setuid files with...

CVE-2026-93658: Improper Preservation of Permissions

uutils coreutils versions before 0.10.0 apply setuid or setgid mode to install destinations before finalizing ownership changes, allowing privileged users to leave setuid executables owned by the privileged invoker when ownership changes fail. Attackers can execute leftover setuid files with...

GHSA-FQF6-GXHH-2XHW uutils coreutils: cp/install/mv/ln --suffix alone does not enable backup mode (silent data loss vs GNU)

determinebackupmode in src/uucore/src/lib/features/backupcontrol.rs only checks --backup/-b and returns BackupMode::None when only --suffix is given. GNU enables backup mode when --suffix is used alone defaulting to existing/numbered, or $VERSIONCONTROL. Affects cp, install, mv, ln which share th...

GHSA-P7H3-7Q52-72W8 printenv: environment variables with invalid UTF-8 are silently skipped (evades inspection)

The printenv utility in uutils coreutils fails to display environment variables containing invalid UTF-8 byte sequences. While POSIX permits arbitrary bytes in environment strings, the uutils implementation silently skips these entries rather than printing the raw bytes. This vulnerability allows...

id: groups= computed from real GID instead of effective GID

The id utility in uutils coreutils miscalculates the groups= section of its output. The implementation uses a user's real GID instead of their effective GID to compute the group list, leading to potentially divergent output compared to GNU coreutils. Because many scripts and automated processes...

GHSA-WV33-5PXH-R7J7 cut: -s (only-delimited) ignored when delimiter is a newline

The cut utility in uutils coreutils incorrectly handles the -s only-delimited option when a newline character is specified as the delimiter. The implementation fails to verify the onlydelimited flag in the cutfieldsnewlinechardelim function, causing the utility to print non-delimited lines that...

GHSA-6GCW-W7CP-94G9 comm: lossy UTF-8 conversion silently corrupts non-UTF-8 output

The comm utility in uutils coreutils silently corrupts data by performing lossy UTF-8 conversion on all output lines. The implementation uses String::fromutf8lossy, which replaces invalid UTF-8 byte sequences with the Unicode replacement character U+FFFD. This behavior differs from GNU comm, whic...

EUVD-2026-24978

comm: lossy UTF-8 conversion silently corrupts non-UTF-8 output...

GHSA-2W8R-9XJ7-69J5 mktemp: empty TMPDIR creates temp files in CWD instead of /tmp

The mktemp utility in uutils coreutils fails to properly handle an empty TMPDIR environment variable. Unlike GNU mktemp, which falls back to /tmp when TMPDIR is an empty string, the uutils implementation treats the empty string as a valid path. This causes temporary files to be created in the...