CVE-2026-92811Network attack vectorHinoki check available

Authenticated file read via unfiltered Playwright navigation

Published Sep 16, 2026 · Updated Sep 21, 2026

Improper file-protocol restriction in Browserless 1.44.0 through 2.56.7 allows remote authenticated users to read container files. Playwright WebSocket routes accept file-scheme navigation without applying the ALLOW_FILE_PROTOCOL setting's default-deny URL block. A valid Browserless token and a readable path are required, and exposure is limited to files accessible to the container process.

CVSS severityUnavailable
Unscored
EPSS probability0.45%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Improper file-protocol restriction in Browserless 1.44.0 through 2.56.7 allows remote authenticated users to read container files. Playwright WebSocket routes accept file-scheme navigation without applying the ALLOW_FILE_PROTOCOL setting's default-deny URL block. A valid Browserless token and a readable path are required, and exposure is limited to files accessible to the container process.

The record

CVE
CVE-2026-92811
Published
Sep 16, 2026
Updated
Sep 21, 2026
Vendor
Browserless
Product
Browserless
Classifications
T1005
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 21, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.44.0 <=2.56.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Browserless · Browserlessversion=1.44.0 <=2.56.7

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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