Vulnerability DatabaseCVE-2026-49144
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CVE-2026-49144
Published:June 02, 2026
Updated:July 21, 2026
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.
Related Resources (4)
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
https://github.com/browserstack/browserstack-runner
https://nvd.nist.gov/vuln/detail/CVE-2026-49144
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CVSS v4
Base Score:
7.1
Attack Vector
ADJACENT
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-22
EPSS
Base Score:
0.21