CVE-2026-35364 uutils coreutils mv Arbitrary File Overwrite via Cross-Device 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-2026-35364

The CVE-2026-35364 entry describes a TOCTOU race in the mv utility of the uutils coreutils project during cross-device operations. The vulnerability arises when mv removes the destination path and recreates it via a copy; a local attacker with write access to the destination directory can replace...

CVE-2026-35356 uutils coreutils install Arbitrary File Overwrite with -D via Path Component Symlink Race

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-2026-35356 uutils coreutils install Arbitrary File Overwrite with -D via Path Component Symlink Race

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-2026-35356 uutils coreutils install Arbitrary File Overwrite with -D via Path Component Symlink Race

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 uutils coreutils install Arbitrary File Overwrite via Symlink TOCTOU Race

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-2026-35355 uutils coreutils install Arbitrary File Overwrite via Symlink TOCTOU Race

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...

K000160938: OpenSSH vulnerabilities CVE-2019-16905 and CVE-2020-12062

Security Advisory Description CVE-2019-16905 OpenSSH 7.7 through 7.9 and 8.x before 8.1, when compiled with an experimental key type, has a pre-authentication integer overflow if a client or server is configured to use a crafted XMSS key. This leads to memory corruption and local code execution...

EUVD-2026-23901

python-dotenv: Symlink following in setkey allows arbitrary file overwrite via cross-device rename fallback...

python-dotenv: Symlink following in set_key allows arbitrary file overwrite via cross-device rename fallback

Summary setkey and unsetkey in python-dotenv follow symbolic links when rewriting .env files, allowing a local attacker to overwrite arbitrary files via a crafted symlink when a cross-device rename fallback is triggered. Details The rewrite context manager in dotenv/main.py is used by both setkey...

GHSA-MF9W-MJ56-HR94 python-dotenv: Symlink following in set_key allows arbitrary file overwrite via cross-device rename fallback

Summary setkey and unsetkey in python-dotenv follow symbolic links when rewriting .env files, allowing a local attacker to overwrite arbitrary files via a crafted symlink when a cross-device rename fallback is triggered. Details The rewrite context manager in dotenv/main.py is used by both setkey...

PYSEC-2026-2270

python-dotenv reads key-value pairs from a .env file and can set them as environment variables. Prior to version 1.2.2, setkey and unsetkey in python-dotenv follow symbolic links when rewriting .env files, allowing a local attacker to overwrite arbitrary files via a crafted symlink when a...

CVE-2026-28684

python-dotenv reads key-value pairs from a .env file and can set them as environment variables. Prior to version 1.2.2, setkey and unsetkey in python-dotenv follow symbolic links when rewriting .env files, allowing a local attacker to overwrite arbitrary files via a crafted symlink when a...

CVE-2026-28684 python-dotenv: Symlink following in set_key allows arbitrary file overwrite via cross-device rename fallback

python-dotenv reads key-value pairs from a .env file and can set them as environment variables. Prior to version 1.2.2, setkey and unsetkey in python-dotenv follow symbolic links when rewriting .env files, allowing a local attacker to overwrite arbitrary files via a crafted symlink when a...

CVE-2026-28684

CVE-2026-28684 (python-dotenv) : The issue affects python-dotenv where the functions set_key() and unset_key() follow symbolic links when rewriting the .env file. This behavior enables a local attacker to overwrite arbitrary files via a crafted symlink during a cross-device rename fallback. Impac...

CVE-2026-28684 python-dotenv: Symlink following in set_key allows arbitrary file overwrite via cross-device rename fallback

python-dotenv reads key-value pairs from a .env file and can set them as environment variables. Prior to version 1.2.2, setkey and unsetkey in python-dotenv follow symbolic links when rewriting .env files, allowing a local attacker to overwrite arbitrary files via a crafted symlink when a...

CVE-2026-28684 python-dotenv: Symlink following in set_key allows arbitrary file overwrite via cross-device rename fallback

python-dotenv reads key-value pairs from a .env file and can set them as environment variables. Prior to version 1.2.2, setkey and unsetkey in python-dotenv follow symbolic links when rewriting .env files, allowing a local attacker to overwrite arbitrary files via a crafted symlink when a...

CVE-2026-5958

When sed is invoked with both -i in-place edit and --follow-symlinks, the function opennextfile performs two separate, non-atomic filesystem operations on the same path: 1. resolves symlink to its target and stores the resolved path for determining when output is written, 2. opens the original...

GNU Sed 安全漏洞

GNU Sed is a command-line tool in the GNU community in the United States, used for text stream editing and batch processing. GNU Sed has a security vulnerability that arises from a race condition when both the -i and --follow-symlinks options are used simultaneously, which may allow attackers to...

PT-2026-33800

Name of the Vulnerable Software and Affected Versions python-dotenv versions prior to 1.2.2 Description The set key and unset key functions in python-dotenv follow symbolic links when rewriting .env files. This occurs when the rewrite context manager in dotenv/main.py writes to a temporary file i...