CVE-2026-49144 [MEDIUM] – BrowserStack Runner through 0.9.5 contains a path traversal vulnerability in the _default

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.