CVE-2026-24884CWE-59

Compressing Vulnerable to Arbitrary File Write via Symlink Extraction

High · published February 4, 2026

CVSS v3.1
8.4
EPSS
0%
Percentile
27.8
In the wild
Unconfirmed
What it is

⚡ A sneaky symlink vulnerability lurks in the Compressing library, letting attackers install files anywhere they please! 🔥 Think of it like a delivery driver who, instead of dropping off a package at your intended address, just follows the instructions on a poorly labeled map — leading to your neighbor's living room! An attacker could exploit this vulnerability to write files to arbitrary locations in the host file system, potentially overwriting sensitive data or creating new, unwanted files in critical areas. This makes the environment ripe for more devastating attacks, as your system could become a playground for malicious activities.

Put simply

Think of it like a delivery driver who, instead of dropping off a package at your intended address, just follows the instructions on a poorly labeled map — leading to your neighbor's living room! The Compressing library, in versions 2.0.0 and 1.10.3 and earlier, allows users to extract TAR archives without validating the targets of symbolic links. This oversight can lead to unauthorized file access or modifications.

What to do

An attacker could exploit this vulnerability to write files to arbitrary locations in the host file system, potentially overwriting sensitive data or creating new, unwanted files in critical areas. This makes the environment ripe for more devastating attacks, as your system could become a playground for malicious activities. Upgrade to Compressing versions 1.10.4 or 2.0.1 immediately to patch this vulnerability. Additionally, review your extraction methods to ensure they validate symlink targets effectively. Don't forget to monitor your systems for any signs of tampering! You've got this! Follow these steps and you'll have your systems secured in no time! 🛡️

The record
Technical detail
CVSS v3.1
8.4 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00353 · 27.8th percentile
Weakness
CWE-59 · Improper Link Resolution Before File Access ('Link Following')
Published
2026-02-04T19:35Z
EPSS history
Timeline
  • 04 FEB 19:35Z
    Compressing Vulnerable to Arbitrary File Write via Symlink Extraction
    cvelistv5