CVE-2026-57572 CRITICAL

CVE-2026-57572: Crawl4AI: Unauthenticated RCE via Chromium launch-argument injection in browser_config.extra_args

Vendor Unclecode
Product crawl4ai
Weakness CWE-88
Published July 6, 2026
Last update July 8, 2026

CVSS base score

10.0/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

What the vulnerability does

01Description

Crawl4AI is an open-source LLM-friendly web crawler and scraper. Prior to 0.9.0, the Docker API server accepted request-supplied browser_config.extra_args, which flowed into Chromium's launch arguments. An attacker could inject Chromium switches that replace a child-process launch command together with --no-zygote, causing Chromium to fork or exec an attacker-controlled command as the container's runtime user. The Docker API is unauthenticated by default, so a single request yields arbitrary command execution. This issue is fixed in version 0.9.0.

Key dates

02Disclosure timeline

July 6, 2026 CVE published
July 8, 2026 Record updated