Improper handling of highly compressed data in GuardDog - CVE-2026-22870
Published: January 14, 2026
Vulnerability identifier: #VU121466
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-22870
CWE-ID: CWE-409
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to the application does not properly handle highly compressed data in the safe_extract() function. A remote attacker can supply a specially crafted archive to the application and consume all available space on the system while unpacking the archive, leading to a denial of service condition.
Affected software
GuardDog
How to mitigate CVE-2026-22870
Install updates from vendor's website.
GuardDog - update to 2.7.1