CVE-2026-92811: Browserless

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

• Browserless Browserless: from 1.44.0, up to and including 2.56.7

Published 2026-09-16. Last modified 2026-09-22.