{"id":"CVE-2026-92811","title":"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","summary":"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 f…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","cwe":["CWE-200"],"vendor":"browserless","product":"browserless","affected":["browserless >= 1.44.0 <= 2.56.7"],"published":"2026-09-16","updated":"2026-09-22","sourceUpdated":"2026-09-22T20:53:07.383","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-92811","references":[{"url":"https://github.com/browserless/browserless","label":"disclosure@vulncheck.com"},{"url":"https://github.com/browserless/browserless/blob/v2.50.1/src/browsers/browsers.cdp.ts#L105-L135","label":"disclosure@vulncheck.com"},{"url":"https://github.com/browserless/browserless/blob/v2.50.1/src/browsers/browsers.playwright.ts","label":"disclosure@vulncheck.com"},{"url":"https://github.com/geo-chen/oss/blob/main/browserless.md","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/browserless-1.44.0-through-2.56.7-file-protocol-restriction-bypass","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.0026,"epssPercentile":0.1801,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-21T15:40:03.577982Z"},"ingestedAt":"2026-09-16T21:05:36.882Z","slug":"CVE-2026-92811","body":"## Overview\n\nbrowserless 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":208528,"id":"CVE-2026-92811","ts":1790007739609,"field":"exploit_available","old":"false","new":"true"}]}