CVE WatchJul 28, 2026

CVE-2026-54545

wakaru is a JavaScript decompiler and unminifier toolkit. From 1.0.0 until 1.4.0, @wakaru/cli sanitizes bundle-controlled module filenames o

CVSS

7.1

High

EPSS

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KEV

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Exploit Today

0-100

Published: Jul 28, 2026 · Last modified: Jul 28, 2026 · CWE-22

EPSS · 30d

Not enough EPSS history yet.

Technical 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.

Official references

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