CVE-2026-54550
HIGH
7,4
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: required
Scope: changed
Confidentiality: none
Integrity: high
Availability: none
Description
AI Translation Available
IzPack is a widely used tool for packaging applications on the Java platform as cross-platform installers. In 5.2.6 and earlier, UnpackerBase.unpack() in izpack-installer/src/main/java/com/izforge/izpack/installer/unpacker/UnpackerBase.java obtains an attacker-controlled PackFile targetPath, passes it through IoHelper.translatePath(), which only converts separators, and constructs a File without normalizing parent-directory segments or enforcing destination containment. A malicious installer pack entry containing ../ sequences can therefore write outside the intended installation directory to startup folders, executable search paths, or other locations accessible with the victim's privileges when the victim runs the installer.
22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
StableCommon Consequences
Security Scopes Affected:
Integrity
Confidentiality
Availability
Potential Impacts:
Execute Unauthorized Code Or Commands
Modify Files Or Directories
Read Files Or Directories
Dos: Crash, Exit, Or Restart
Applicable Platforms
Technologies:
AI/ML
https://github.com/izpack/izpack/security/advisories/GHSA-f63g-88cj-hjf9
https://github.com/izpack/izpack/commit/4233ba38d0f1825f9cf3e0204e5261a5498e29d8
https://github.com/izpack/izpack/commit/8b7c6792c4fe85e3b1759c106aae39b904848466
https://github.com/izpack/izpack/pull/1193
https://github.com/izpack/izpack/security/advisories/GHSA-f63g-88cj-hjf9