CVE-2026-56265 Details.
Crawl4AI < 0.8.7 - Hardcoded JWT Signing Key Authentication Bypass
Atlas does not check this one. Needs a scripted sequence.
This check is a series of requests where each step depends on the last, often after logging in. Atlas runs single, read-only probes, so it does not run this one.
About CVE-2026-56265. What It Means.
Crawl4AI Docker API server versions before 0.8.7 ship with a hardcoded default JWT signing key ("mysecret") used to sign and verify HS256 authentication tokens. Because the key is identical across every deployment where SECRET_KEY has not been overridden, an unauthenticated attacker can forge a valid Bearer token and use it to access every JWT-protected API endpoint (/md, /html, /screenshot, /pdf, /execute_js, /crawl, /ask).
Affected Product. What Is Hit.
- Vendor
- unclecode
- Product
- Unclecode CRAWL4AI
More CVEs In Unclecode CRAWL4AI.
FAQ
Common Questions.
Crawl4AI < 0.8.7 - Hardcoded JWT Signing Key Authentication Bypass. Crawl4AI Docker API server versions before 0.8.7 ship with a hardcoded default JWT signing key ("mysecret") used to sign and verify HS256 authentication tokens. Because the key is identical across every deployment where SECRET_KEY has not been overridden, an unauthenticated attacker can forge a valid Bearer token and use it to access every JWT-protected API endpoint (/md, /html, /screenshot, /pdf, /execute_js, /crawl, /ask).
No. This check is a series of requests where each step depends on the last, often after logging in. Atlas runs single, read-only probes, so it does not run this one. The facts about CVE-2026-56265 are on this page, and you can request a demo to see how Brandefense watches your whole external attack surface.
CVE-2026-56265 is not on the CISA Known Exploited Vulnerabilities list at the time of writing, but it is still worth fixing.
Update Unclecode CRAWL4AI to the latest version from the vendor, or follow the vendor's advice to switch off the affected feature. Vendor links are listed on this page when they are known.
This page lists the public facts about CVE-2026-56265. Atlas does not run a check for it, so nothing here says whether a particular site is affected.