CVE-2026-92811

browserless 1.44.0 through 2.56.7 File Protocol Restriction Bypass

Published Sep 16, 2026 CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

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

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

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Sep 21, 2026, 3:40 PM
Reserved
Sep 16, 2026, 7:55 PM
Status
Deferred
Published
Sep 16, 2026, 9:17 PM
Modified
Sep 22, 2026, 8:53 PM