{"id":"CVE-2026-54545","revision":null,"records":[{"revision":"d42bb5733853492fbec11b48fc871778","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-54545","aliases":[],"title":"@wakaru/cli arbitrary file write during bundle unpack","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.","state":0,"publishedAt":"2026-07-28T14:43:45.808+00:00","modifiedAt":"2026-07-28T16:09:23.417+00:00","affected":[{"ecosystem":"Vendor product","name":"wakaru","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"pionxzh\",\n                    \"product\": \"wakaru\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 1.0.0, < 1.4.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 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,"severity":"HIGH"}],"references":["https://github.com/pionxzh/wakaru/security/advisories/GHSA-7wpj-vvmv-pgm8","https://github.com/pionxzh/wakaru/commit/1d30383b20a6f768786b8ada2f1b0945de13c316","https://github.com/pionxzh/wakaru/releases/tag/v1.4.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-54545","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-54545","identifiers":["CVE-2026-54545"]},"retained":false,"historicalAffected":[]},{"revision":"ae6b3bffe4c042909eab9fcdd4398bf4","observedAt":"2026-10-25T13:17:28.253+00:00","statement":{"source":"nvd","id":"CVE-2026-54545","aliases":[],"title":"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 se…","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.","state":0,"publishedAt":"2026-07-28T16:18:59.327+00:00","modifiedAt":"2026-10-24T13:10:00.147+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","score":7.1,"severity":"HIGH"}],"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"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-54545","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-22"],"productCriteria":[],"sourceDates":{"published":"2026-07-28T16:18:59.327","lastModified":"2026-10-24T13:10:00.147"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-54545","identifiers":["CVE-2026-54545"]},"retained":false,"historicalAffected":[]},{"revision":"726725eac5224db7997db09364811468","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-7wpj-vvmv-pgm8","aliases":["CVE-2026-54545"],"title":"@wakaru/cli arbitrary file write during bundle unpack","description":"### Impact\n\n`@wakaru/cli` is vulnerable to arbitrary file write when unpacking a crafted JavaScript bundle with `--unpack`.\n\nBundle-controlled module filenames were sanitized before writing extracted modules to the output directory. A crafted filename containing overlapping path traversal characters, such as `....//`, could be transformed into `../` after sanitization. This allowed the final output path to escape the intended output directory.\n\nAn attacker who can cause a user to run `wakaru --unpack` on a malicious bundle may be able to write files outside the selected output directory. Depending on the target path and user environment, this may lead to code execution.\n\nAffected versions: `>=1.0.0 <1.4.0`.\n\n### Patches\n\nThe issue has been patched in `@wakaru/cli@1.4.0`.\n\nUsers should upgrade to:\n\n```sh\nnpm install @wakaru/cli@latest\n```\n\nor specifically:\n```\nnpm install @wakaru/cli@1.4.0\n```\n\n### Workarounds\n\nDo not run `wakaru --unpack` on untrusted or unknown bundles with affected versions.\n\nIf upgrading immediately is not possible, avoid using `--unpack on files that may be attacker-controlled.","state":0,"publishedAt":"2026-07-28T14:44:01+00:00","modifiedAt":"2026-07-28T15:11:50.880711+00:00","affected":[{"ecosystem":"npm","name":"@wakaru/cli","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"1.0.0"},{"kind":"fixed","version":"1.4.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/pionxzh/wakaru/security/advisories/GHSA-7wpj-vvmv-pgm8","https://github.com/pionxzh/wakaru/commit/1d30383b20a6f768786b8ada2f1b0945de13c316","https://github.com/pionxzh/wakaru","https://github.com/pionxzh/wakaru/releases/tag/v1.4.0"],"sourceUrl":"https://github.com/advisories/GHSA-7wpj-vvmv-pgm8","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-7wpj-vvmv-pgm8","identifiers":["GHSA-7wpj-vvmv-pgm8","CVE-2026-54545"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-10-26T02:37:01.8023049+00:00","complete":true,"records":1756,"lastAttemptAt":"2026-10-26T02:37:01.8023049+00:00","lastSuccessAt":"2026-10-26T02:37:01.9582808+00:00","error":null,"lastVerifiedAt":"2026-10-26T02:37:01.9582828+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-5ba1945314e042c2ced14b33f3680fa71692812d925544312b218f5eb8a26e71-db718265d4164c5786f6ba29fb49aaca9f98d018ab1781237fdcf612cd6089e1","complete":true,"records":414057,"lastAttemptAt":"2026-10-26T02:35:18.1393313+00:00","lastSuccessAt":"2026-10-26T02:35:18.1285176+00:00","error":null,"lastVerifiedAt":"2026-10-26T02:35:18.1393313+00:00","snapshotPublishedAt":"2026-10-26T01:45:24+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-43321610382942b8ad8c85917eab1546","complete":false,"records":4735,"lastAttemptAt":"2026-10-26T02:37:04.5963782+00:00","lastSuccessAt":"2026-10-24T23:18:49.862+00:00","error":"InvalidDataException","lastVerifiedAt":"2026-10-24T23:18:49.862+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":4764,"expectedIdentifiers":13474},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-10-26T02:37:01.8023049+00:00","complete":true,"records":1093,"lastAttemptAt":"2026-10-26T02:37:01.8023049+00:00","lastSuccessAt":"2026-10-26T02:37:02.0734316+00:00","error":null,"lastVerifiedAt":"2026-10-26T02:37:02.0734335+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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