uutils coreutils: Input validation error vulnerability

uutils coreutils is a cross-platform core command-line toolset developed by Uutils Open Source. uutils coreutils has a vulnerability related to input validation errors. This vulnerability stems from a cut logic error, which incorrectly interprets two-byte literal strings as empty delimiters. This...

PT-2026-34516

Name of the Vulnerable Software and Affected Versions uutils coreutils affected versions not specified Description A logic error in the cut utility causes the program to incorrectly interpret the literal two-byte string '' two single quotes as an empty delimiter. The implementation mistakenly map...

CVE-2026-35363: Improper Limitation of a Pathname to a Restricted Directory

A vulnerability in the rm utility of uutils coreutils allows the bypass of safeguard mechanisms intended to protect the current directory. While the utility correctly refuses to delete . or .., it fails to recognize equivalent paths with trailing slashes, such as ./ or .///. An accidental or...

CVE-2026-35381: Incorrect Provision of Specified Functionality

A logic error in the cut utility of uutils coreutils causes the utility to ignore the -s only-delimited flag when using the -z null-terminated and -d '' empty delimiter options together. The implementation incorrectly routes this specific combination through a specialized newline-delimiter code...

CVE-2026-35346: Improper Handling of Unicode Encoding

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...

CVE-2026-35340: Incorrect Check of Function Return Value

A flaw in the ChownExecutor used by uutils coreutils chown and chgrp causes the utilities to return an incorrect exit code during recursive operations. The final exit code is determined only by the last file processed. If the last operation succeeds, the command returns 0 even if earlier ownershi...

CVE-2026-35342: Insecure Temporary File

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...

PT-2026-34486

Name of the Vulnerable Software and Affected Versions uutils coreutils affected versions not specified Description The cp utility fails to properly handle setuid and setgid bits when ownership preservation fails. When using the '-p' preserve flag, the utility applies the source mode bits even if...

CVE-2026-35353: Time-of-check Time-of-use (TOCTOU) Race Condition

The mkdir utility in uutils coreutils incorrectly applies permissions when using the -m flag by creating a directory with umask-derived permissions typically 0755 before subsequently changing them to the requested mode via a separate chmod system call. In multi-user environments, this introduces ...

CVE-2026-35339: Incorrect Check of Function Return Value

The recursive mode -R of the chmod utility in uutils coreutils incorrectly handles exit codes when processing multiple files. The final return value is determined solely by the success or failure of the last file processed. This allows the command to return an exit code of 0 success even if error...

uutils coreutils security vulnerabilities

uutils coreutils is a cross-platform core command-line toolset developed by Uutils Open Source. There is a security vulnerability in uutils coreutils. This vulnerability arises from the fact that the mktemp utility fails to properly handle the empty TMPDIR environment variable. Unlike GNU mktemp,...

CVE-2026-35349: Improper Link Resolution Before File Access

A vulnerability in the rm utility of uutils coreutils allows a bypass of the --preserve-root protection. The implementation uses a path-string check rather than comparing device and inode numbers to identify the root directory. An attacker or accidental user can bypass this safeguard by using a...

CVE-2026-35376: Time-of-check Time-of-use (TOCTOU) Race Condition

A Time-of-Check to Time-of-Use TOCTOU vulnerability exists in the chcon utility of uutils coreutils during recursive operations. The implementation resolves recursive targets using a fresh path lookup via ftsaccpath rather than binding the traversal and label application to the specific directory...

uutils coreutils security vulnerabilities

uutils coreutils is a cross-platform core command-line toolset developed by Uutils. There is a security vulnerability in uutils coreutils, which stems from an information leakage race condition. This vulnerability could allow local attackers to open files before permission restrictions are...

CVE-2026-35367: Incorrect Permission Assignment for Critical Resource

The nohup utility in uutils coreutils creates its default output file, nohup.out, without specifying explicit restricted permissions. This causes the file to inherit umask-based permissions, typically resulting in a world-readable file 0644. In multi-user environments, this allows any user on the...

CVE-2026-35378: Incorrect Short Circuit Evaluation

A logic error in the expr utility of uutils coreutils causes the program to evaluate parenthesized subexpressions during the parsing phase rather than at the execution phase. This implementation flaw prevents the utility from performing proper short-circuiting for logical OR | and AND & operation...

CVE-2026-35364: Time-of-check Time-of-use (TOCTOU) Race Condition

A Time-of-Check to Time-of-Use TOCTOU race condition exists in the mv utility of uutils coreutils during cross-device operations. The utility removes the destination path before recreating it through a copy operation. A local attacker with write access to the destination directory can exploit thi...

CVE-2026-35379: Incorrect Provision of Specified Functionality

A logic error in the tr utility of uutils coreutils causes the program to incorrectly define the :graph: and :print: character classes. The implementation mistakenly includes the ASCII space character 0x20 in the :graph: class and excludes it from the :print: class, effectively reversing the...

CVE-2026-35371: User Interface (UI) Misrepresentation of Critical Information

The id utility in uutils coreutils exhibits incorrect behavior in its "pretty print" output when the real UID and effective UID differ. The implementation incorrectly uses the effective GID instead of the effective UID when performing a name lookup for the effective user. This results in misleadi...

CVE-2026-35372: UNIX Symbolic Link (Symlink) Following

A logic error in the ln utility of uutils coreutils allows the utility to dereference a symbolic link target even when the --no-dereference or -n flag is explicitly provided. The implementation previously only honored the "no-dereference" intent if the --force overwrite mode was also enabled. Thi...