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OpenAdvisories
High · 7.0 CVE-2026-54684 EUVD-2026-44536

jadx: XAPK archive entries with absolute paths can plant drop-in plugins and achieve code execution on the next jadx run

Published Jul 14, 2026 · Updated Jul 15, 2026 · Assigned by GitHub_M

Description

jadx is a Dex to Java decompiler. From 1.5.2 to 1.5.5, a malicious .xapk file can cause jadx to write attacker-controlled archive entry contents outside the intended XAPK plugin temporary unpack directory because XApkLoader resolves each entry name directly with tmpDir.resolve(fileName) after a CWD-based ZIP security check. When jadx is launched from a directory that is an ancestor of the config directory, the arbitrary write can plant a JAR in plugins/dropins, and the next jadx run loads the JAR with URLClassLoader and ServiceLoader, executing attacker-controlled plugin code. This issue is fixed in version 1.5.6.

Affected products

VendorProductAffectedFixed
skylot jadx >= 1.5.2, < 1.5.6 —

References