{"cve":"CVE-2026-54545","nvd":{"published":"2026-07-28T16:18:59.327","modified":"2026-10-24T13:10:00.147","status":"Deferred","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","score":7.1},"cwes":["CWE-22"],"references":["https://github.com/pionxzh/wakaru/commit/1d30383b20a6f768786b8ada2f1b0945de13c316","https://github.com/pionxzh/wakaru/releases/tag/v1.4.0","https://github.com/pionxzh/wakaru/security/advisories/GHSA-7wpj-vvmv-pgm8"],"products":[],"source":"nvd","synced_at":"2026-10-24T16:53:27.712498749+00:00"},"epss":{"cve":"CVE-2026-54545","score":0.00197,"percentile":0.093,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-7wpj-vvmv-pgm8","url":"https://osv.dev/vulnerability/GHSA-7wpj-vvmv-pgm8","summary":"@wakaru/cli arbitrary file write during bundle unpack","modified":"2026-07-28T15:11:50.880711Z","packages":[{"ecosystem":"npm","name":"@wakaru/cli","purl":"pkg:npm/%40wakaru/cli","ranges":[">=1.0.0 <1.4.0"],"fixed":["1.4.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}