CVE-2026-26216 Details.
Crawl4AI < 0.8.0 - Unauthenticated Remote Code Execution via Hooks Parameter
Atlas does not check this one. Needs requests that change data.
To test for this one, the check would have to send requests that could change data on the site. Atlas only ever reads public pages, so it does not run this check.
About CVE-2026-26216. What It Means.
Crawl4AI versions prior to 0.8.0 contain a remote code execution vulnerability in the Docker API deployment. The /crawl endpoint accepts a hooks parameter containing Python code that is executed using exec(). The __import__ builtin was included in the allowed builtins, allowing unauthenticated remote attackers to import arbitrary modules and execute system commands. Successful exploitation allows full server compromise, including arbitrary command execution, file read and wr…
Affected Product. What Is Hit.
The record for CVE-2026-26216 does not name a vendor or product yet.
References. Where To Read More.
- https://github.com/unclecode/crawl4ai/security/advisories/GHSA-5882-5rx9-xgxp
- https://www.vulncheck.com/advisories/crawl4ai-docker-api-unauthenticated-remote-code-execution-via-hooks-parameter
- https://github.com/unclecode/crawl4ai/blob/main/docs/blog/release-v0.8.0.md
- https://nvd.nist.gov/vuln/detail/CVE-2026-26216
FAQ
Common Questions.
Crawl4AI < 0.8.0 - Unauthenticated Remote Code Execution via Hooks Parameter. Crawl4AI versions prior to 0.8.0 contain a remote code execution vulnerability in the Docker API deployment. The /crawl endpoint accepts a hooks parameter containing Python code that is executed using exec(). The __import__ builtin was included in the allowed builtins, allowing unauthenticated remote attackers to import arbitrary modules and execute system commands. Successful exploitation allows full server compromise, including arbitrary command execution, file read and wr…
No. To test for this one, the check would have to send requests that could change data on the site. Atlas only ever reads public pages, so it does not run this check. The facts about CVE-2026-26216 are on this page, and you can request a demo to see how Brandefense watches your whole external attack surface.
CVE-2026-26216 is not on the CISA Known Exploited Vulnerabilities list at the time of writing, but it is still worth fixing.
Update the affected software 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-2026-26216. Atlas does not run a check for it, so nothing here says whether a particular site is affected.