{"id":"CVE-2026-23890","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-23890","generatedAt":"2026-10-28T08:37:08.366Z","title":"Prior to version 10.28.1, a path traversal vulnerability in pnpm's bin linking allows malicious npm packages to create executable shims or symlinks outside of `node_modules/.bin`.","description":"pnpm is a package manager. Prior to version 10.28.1, a path traversal vulnerability in pnpm's bin linking allows malicious npm packages to create executable shims or symlinks outside of `node_modules/.bin`. Bin names starting with `@` bypass validation, and after scope normalization, path traversal sequences like `../../` remain intact. This issue affects all pnpm users who install npm packages and CI/CD pipelines using pnpm. It can lead to overwriting config files, scripts, or other sensitive files. Version 10.28.1 contains a patch.","published":"2026-01-26T22:15:56.000Z","lastModified":"2026-06-17T10:22:16.000Z","status":"Analyzed","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"},"cwe":["CWE-23"],"affected":["pnpm/pnpm"],"epss":{"score":0.00502,"percentile":0.42781,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.50%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/pnpm/pnpm/commit/8afbb1598445d37985d91fda18abb4795ae5062d","tags":["Patch"],"source":"security-advisories@github.com"},{"url":"https://github.com/pnpm/pnpm/releases/tag/v10.28.1","tags":["Release Notes"],"source":"security-advisories@github.com"},{"url":"https://github.com/pnpm/pnpm/security/advisories/GHSA-xpqm-wm3m-f34h","tags":["Exploit","Vendor Advisory"],"source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-23890","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}