browserless versions 1.44.0 through 2.56.7 fail to enforce file protocol restrictions in Playwright websocket endpoints, allowing authenticated token holders to read arbitrary files. Attackers can navigate Playwright-driven browsers to file scheme URLs and access files accessible to the container process despite the ALLOW_FILE_PROTOCOL setting defaulting to false.

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Fixes

Solution

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Workaround

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History

Mon, 21 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 18 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
First Time appeared Browserless browserless
Vendors & Products Browserless browserless

Wed, 16 Sep 2026 20:45:00 +0000

Type Values Removed Values Added
Description browserless versions 1.44.0 through 2.56.7 fail to enforce file protocol restrictions in Playwright websocket endpoints, allowing authenticated token holders to read arbitrary files. Attackers can navigate Playwright-driven browsers to file scheme URLs and access files accessible to the container process despite the ALLOW_FILE_PROTOCOL setting defaulting to false.
Title browserless 1.44.0 through 2.56.7 File Protocol Restriction Bypass
First Time appeared Browserless
Browserless chrome
Weaknesses CWE-200
CPEs cpe:2.3:a:browserless:chrome:*:*:*:*:*:*:*:*
Vendors & Products Browserless
Browserless chrome
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-21T15:40:14.058Z

Reserved: 2026-09-16T19:55:01.357Z

Link: CVE-2026-92811

cve-icon Vulnrichment

Updated: 2026-09-21T15:40:08.678Z

cve-icon NVD

Status : Received

Published: 2026-09-16T21:17:30.877

Modified: 2026-09-21T16:17:27.670

Link: CVE-2026-92811

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-18T20:03:04Z

Weaknesses