CVE-2026-49144BrowserStack Runner 0.9.5 Path Traversal via _default HTTP Handler
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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 unauthenticated HTTP server bound on all interfaces to traverse outside the project root and access sensitive files.
- CVSS
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weakness (CWE)
- CWE-22
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Oct 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
browserstack browserstack-runner browserstack:runner (from the name) | through 0.9.5 | CNA record |
References
- https://github.com/browserstack/browserstack-runner/security/advisories/GHSA-8rpw-6cqh-2v9hvendor-advisory
- https://www.vulncheck.com/advisories/browserstack-runner-path-traversal-via-default-http-handlerthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.