High severityNVD Advisory· Published Jul 28, 2026· Updated Jul 28, 2026
@wakaru/cli arbitrary file write during bundle unpack
CVE-2026-54545
Description
wakaru is a JavaScript decompiler and unminifier toolkit. From 1.0.0 until 1.4.0, @wakaru/cli sanitizes bundle-controlled module filenames only once before writing extracted modules, so a crafted filename containing overlapping traversal sequences such as ....// collapses to ../ after sanitization and lets the final output path escape the selected output directory, allowing an attacker who can cause a user to run wakaru --unpack on a malicious bundle to write files outside that directory and, depending on the target path and environment, potentially achieve code execution. This issue is fixed in @wakaru/cli 1.4.0.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
@wakaru/clinpm | >= 1.0.0, < 1.4.0 | 1.4.0 |
Affected products
2- Range: <1.4.0
Patches
Vulnerability mechanics
References
4- github.com/advisories/GHSA-7wpj-vvmv-pgm8ghsaADVISORY
- github.com/pionxzh/wakaru/commit/1d30383b20a6f768786b8ada2f1b0945de13c316ghsax_refsource_MISCWEB
- github.com/pionxzh/wakaru/releases/tag/v1.4.0ghsax_refsource_MISCWEB
- github.com/pionxzh/wakaru/security/advisories/GHSA-7wpj-vvmv-pgm8ghsax_refsource_CONFIRMWEB
News mentions
0No linked articles in our index yet.