CVE-2026-49144

Description

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 Vector

References

• https://github.com/browserstack/browserstack-runner/security/advisories/GHSA-8rpw-6cqh-2v9h
• https://www.vulncheck.com/advisories/browserstack-runner-path-traversal-via-default-http-handler
• https://github.com/browserstack/browserstack-runner/security/advisories/GHSA-8rpw-6cqh-2v9h