CVE-2026-35368: Untrusted Search Path

A vulnerability exists in the chroot utility of uutils coreutils when using the --userspec option. The utility resolves the user specification via getpwnam after entering the chroot but before dropping root privileges. On glibc-based systems, this can trigger the Name Service Switch NSS to load...

CVE-2026-35366: Improper Check for Unusual or Exceptional Conditions

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...

CVE-2026-35365: Improper Link Resolution Before File Access

The mv utility in uutils coreutils improperly handles directory trees containing symbolic links during moves across filesystem boundaries. Instead of preserving symlinks, the implementation expands them, copying the linked targets as real files or directories at the destination. This can lead to...

CVE-2026-35362: Time-of-check Time-of-use (TOCTOU) Race Condition

The safetraversal module in uutils coreutils, which provides protection against Time-of-Check to Time-of-Use TOCTOU symlink races using file-descriptor-relative syscalls, is incorrectly limited to Linux targets. On other Unix-like systems such as macOS and FreeBSD, the utility fails to utilize...

CVE-2026-35356: Time-of-check Time-of-use (TOCTOU) Race Condition

A Time-of-Check to Time-of-Use TOCTOU vulnerability exists in the install utility of uutils coreutils when using the -D flag. The command creates parent directories and subsequently performs a second path resolution to create the target file, neither of which is anchored to a directory file...

CVE-2026-35355: Time-of-check Time-of-use (TOCTOU) Race Condition

The install utility in uutils coreutils is vulnerable to a Time-of-Check to Time-of-Use TOCTOU race condition during file installation. The implementation unlinks an existing destination file and then recreates it using a path-based operation without the OEXCL flag. A local attacker can exploit t...

CVE-2026-35347: Improper Input Validation

The comm utility in uutils coreutils incorrectly consumes data from non-regular file inputs before performing comparison operations. The arefilesidentical function opens and reads from both input paths to compare content without first verifying if the paths refer to regular files. If an input pat...

CVE-2026-35358: Use of Incorrectly-Resolved Name or Reference

The cp utility in uutils coreutils, when performing recursive copies -R, incorrectly treats character and block device nodes as stream sources rather than preserving them. Because the implementation reads bytes into regular files at the destination instead of using mknod, device semantics are...

CVE-2026-35348: Uncaught Exception

The sort utility in uutils coreutils is vulnerable to a process panic when using the --files0-from option with inputs containing non-UTF-8 filenames. The implementation enforces UTF-8 encoding and utilizes expect, causing an immediate crash when encountering valid but non-UTF-8 paths. This diverg...

CVE-2026-35357: Time-of-check Time-of-use (TOCTOU) Race Condition

The cp utility in uutils coreutils is vulnerable to an information disclosure race condition. Destination files are initially created with umask-derived permissions e.g., 0644 before being restricted to their final mode e.g., 0600 later in the process. A local attacker can race to open the file...

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 stems from the dd utility suppressing errors during file truncation operations by unconditionally calling Result::ok. Although...

CVE-2026-35369: Improper Input Validation

An argument parsing error in the kill utility of uutils coreutils incorrectly interprets kill -1 as a request to send the default signal SIGTERM to PID -1. Sending a signal to PID -1 causes the kernel to terminate all processes visible to the caller, potentially leading to a system crash or massi...

PT-2026-34480

Name of the Vulnerable Software and Affected Versions uutils coreutils affected versions not specified Description The dd utility suppresses errors during file truncation operations by unconditionally calling the Result::ok function on truncation attempts. Although this was intended to mimic GNU...

PT-2026-34478

Name of the Vulnerable Software and Affected Versions uutils coreutils affected versions not specified Description The mktemp utility fails to properly handle an empty TMPDIR environment variable. While other implementations fall back to /tmp when TMPDIR is an empty string, this implementation...

PT-2026-34477

Name of the Vulnerable Software and Affected Versions uutils coreutils affected versions not specified Description A flaw in the mkfifo utility allows for the unauthorized modification of permissions on existing files. When the utility fails to create a FIFO because a file already exists at the...

PT-2026-34511

Name of the Vulnerable Software and Affected Versions uutils coreutils affected versions not specified Description A logic error in the split utility occurs when non-UTF-8 prefix or suffix inputs are provided. The implementation uses the to string lossy function to construct chunk filenames, whic...

PT-2026-34485

Name of the Vulnerable Software and Affected Versions uutils coreutils affected versions not specified Description A flaw in the rm utility allows a bypass of the --preserve-root protection. The system uses a path-string check instead of comparing device and inode numbers to identify the root...

PT-2026-34507

Name of the Vulnerable Software and Affected Versions uutils coreutils affected versions not specified Description The id utility 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...

PT-2026-34487

Name of the Vulnerable Software and Affected Versions uutils coreutils affected versions not specified Description The mv utility fails to preserve file ownership when moving files across different filesystem boundaries. In these instances, the utility uses a copy-and-delete routine that creates...

PT-2026-34514

Name of the Vulnerable Software and Affected Versions uutils coreutils affected versions not specified Description A logic error in the expr utility causes the program to evaluate parenthesized subexpressions during the parsing phase instead of the execution phase. This flaw prevents proper...