{"id":"CVE-2026-49144","title":"BrowserStack Runner through 0.9.5 contains a path traversal vulnerability in the _default HTTP handler in lib/server.js that allows unauthenticated network-adjacent attackers to read arbitrary files","summary":"BrowserStack Runner through 0.9.5 contains a path traversal vulnerability in the _default HTTP handler in lib/server.js that allows unauthenticated network-adjacent attackers to read arbitrary files. Attackers can exploit the unauthentic…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","cwe":["CWE-22"],"vendor":"browserstack","product":"browserstack-runner","affected":["browserstack-runner <= 0.9.5"],"published":"2026-06-02","updated":"2026-10-08","sourceUpdated":"2026-10-08T16:17:18.863","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-49144","references":[{"url":"https://github.com/browserstack/browserstack-runner/security/advisories/GHSA-8rpw-6cqh-2v9h","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/browserstack-runner-path-traversal-via-default-http-handler","label":"disclosure@vulncheck.com"},{"url":"https://github.com/browserstack/browserstack-runner/security/advisories/GHSA-8rpw-6cqh-2v9h","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-06-03T14:24:56.644186Z"},"epss":0.00304,"epssPercentile":0.21267,"ingestedAt":"2026-10-08T16:52:14.685Z","slug":"CVE-2026-49144","body":"## Overview\n\nBrowserStack Runner through 0.9.5 contains a path traversal vulnerability in the _default HTTP handler in lib/server.js that allows unauthenticated network-adjacent attackers to read arbitrary files. Attackers can exploit the unauthenticated HTTP server bound on all interfaces to traverse outside the project root and access sensitive files.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}