Auth bypass in Crawl4ai
CVE-2026-56262
Crawl4AI before 0.8.7 contains an authentication bypass vulnerability in the monitor router endpoints that allows unauthenticated attackers to access destructive operations. Remote attackers can invoke the /monitor/actions/cleanup endpoint and manipulate monitoring state without authentication, causing service disruption.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.
EPSS exploit prediction
EPSS: 0.008 (53.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Crawl4ai — versions 0, 0.8.7
- Kidocode Crawl4ai
Weakness classification (CWE)
References
- https://github.com/unclecode/crawl4ai/security/advisories/GHSA-365w-hqf6-vxfg (vendor-advisory, Third Party Advisory)
- https://github.com/unclecode/crawl4ai (Product, product)
- VulnCheck Advisory: Crawl4AI - Unauthenticated Access to Monitor Endpoints via Docker API Server (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-56262?
- CVE-2026-56262 is a medium-severity vulnerability in Crawl4ai, classified under Missing Authentication for Critical Function. CVSS score: 6.5/10. Published 2026-06-24.
- How severe is CVE-2026-56262?
- Medium severity. CVSS v3 base score is 6.5 out of 10.