CVE-2026-54550

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...

IzPack has Path Traversal in UnpackerBase that allows writing files outside the installation directory via malicious pack entries

Summary IzPack's UnpackerBase.unpack resolves pack-file target paths without any canonical-path or directory-containment check. An attacker who distributes a trojanized installer JAR the format is unsigned can include pack entries whose targetPath contains ../ sequences. When a victim runs the...

CVE-2026-54550 IzPack: Path Traversal in UnpackerBase allows writing files outside the installation directory via malicious pack entries

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...

CVE-2026-54550

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...

EUVD-2026-66562

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...