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CVE-2026-54545

7.1 · HIGH

wakaru is a JavaScript decompiler and unminifier toolkit.

Published Jul 28, 2026CWE-22EPSS 0.20%

Overview

CVE-2026-54545 is a high-severity vulnerability. It was published on July 28, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/pionxzh/wakaru/commit/1d30383b20a6f768786b8ada2f1b0945de13c316GitHubgithub.com/pionxzh/wakaru/releases/tag/v1.4.0GitHubgithub.com/pionxzh/wakaru/security/advisories/GHSA-7wpj-vvmv-pgm8

How CyberStrike helps

Frequently asked questions

What is CVE-2026-54545?

CVE-2026-54545 is a high-severity vulnerability. It was published on July 28, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2026-54545?

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-54545?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-54545?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-54545 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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