CVE-2026-49144 Details
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.
A path traversal vulnerability has been identified in BrowserStack Runner versions through 0.9.5. The issue resides in the default HTTP handler within lib/server.js, where the server fails to properly validate file paths before serving them. This vulnerability allows unauthenticated network-adjacent attackers to read arbitrary files from the host filesystem. The HTTP server, bound to all interfaces, can be exploited to traverse outside the project root and access sensitive files.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jun 2, 2026CISA-ADP
Assessed Jun 3, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/browserstack/browserstack-runner/security/advisories/GHSA-8rpw-6cqh-2v9h | CISA-ADP | AdvisoryExploitTechnical DescriptionVendor |
| https://github.com/browserstack/browserstack-runner/security/advisories/GHSA-8rpw-6cqh-2v9h | [email protected] | AdvisoryExploitTechnical DescriptionVendor |
| https://www.vulncheck.com/advisories/browserstack-runner-path-traversal-via-default-http-handler | [email protected] | Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| BrowserStack Runner | <= 0.9.5 (semver) |
CPE
Remediation
| |
Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 22, 2026 | CVE Translated | [email protected] |
| Jul 14, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 3, 2026 | CVE Modified | CISA-ADP |
| Jun 2, 2026 | New CVE Received | [email protected] |