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4 vulnerabilities found for browserstack-runner by browserstack

CVE-2026-49144 (GCVE-0-2026-49144)

Vulnerability from nvd – Published: 2026-06-02 20:34 – Updated: 2026-06-03 14:25 Unsupported When Assigned X_Open Source
VLAI
Title
BrowserStack Runner 0.9.5 Path Traversal via _default HTTP Handler
Summary
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.
Severity
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
Vendor Product Version
browserstack browserstack-runner Affected: 0 , ≤ 0.9.5 (semver)
Create a notification for this product.
Date Public
2026-05-26 00:00
Credits
Christ Bouchuen
Show details on NVD website
To clipboard 

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CVE-2026-49143 (GCVE-0-2026-49143)

Vulnerability from nvd – Published: 2026-06-02 20:31 – Updated: 2026-06-03 14:02 Unsupported When Assigned X_Open Source
VLAI
Title
BrowserStack Runner 0.9.5 Unauthenticated RCE via /_log HTTP Handler
Summary
BrowserStack Runner through 0.9.5 contains a remote code execution vulnerability in the /_log HTTP handler that allows unauthenticated network-adjacent attackers to execute arbitrary code by submitting crafted JSON request bodies to the handler, which passes user-supplied data to vm.runInNewContext() combined with eval(). Attackers can escape the Node.js vm sandbox by leveraging a host-context Function reference through util.format to access the host process via this.constructor.constructor, achieving full remote code execution on the underlying system without any authentication.
Severity
8.7 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.8 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
Impacted products
Vendor Product Version
browserstack browserstack-runner Affected: 0 , ≤ 0.9.5 (semver)
Create a notification for this product.
Date Public
2026-05-26 00:00
Credits
Christ Bouchuen
Show details on NVD website
To clipboard 

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CVE-2026-49144 (GCVE-0-2026-49144)

Vulnerability from cvelistv5 – Published: 2026-06-02 20:34 – Updated: 2026-06-03 14:25 Unsupported When Assigned X_Open Source
VLAI
Title
BrowserStack Runner 0.9.5 Path Traversal via _default HTTP Handler
Summary
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.
Severity
7.1 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
Vendor Product Version
browserstack browserstack-runner Affected: 0 , ≤ 0.9.5 (semver)
Create a notification for this product.
Date Public
2026-05-26 00:00
Credits
Christ Bouchuen
Show details on NVD website
To clipboard 

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CVE-2026-49143 (GCVE-0-2026-49143)

Vulnerability from cvelistv5 – Published: 2026-06-02 20:31 – Updated: 2026-06-03 14:02 Unsupported When Assigned X_Open Source
VLAI
Title
BrowserStack Runner 0.9.5 Unauthenticated RCE via /_log HTTP Handler
Summary
BrowserStack Runner through 0.9.5 contains a remote code execution vulnerability in the /_log HTTP handler that allows unauthenticated network-adjacent attackers to execute arbitrary code by submitting crafted JSON request bodies to the handler, which passes user-supplied data to vm.runInNewContext() combined with eval(). Attackers can escape the Node.js vm sandbox by leveraging a host-context Function reference through util.format to access the host process via this.constructor.constructor, achieving full remote code execution on the underlying system without any authentication.
Severity
8.7 (High)
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.8 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
Impacted products
Vendor Product Version
browserstack browserstack-runner Affected: 0 , ≤ 0.9.5 (semver)
Create a notification for this product.
Date Public
2026-05-26 00:00
Credits
Christ Bouchuen
Show details on NVD website
To clipboard 

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