CVE-2026-26216
CVE-2026-26216 is a critical-severity vulnerability in Kidocode Crawl4ai with a CVSS 3.x base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.
Key facts
- Severity: Critical (CVSS 3.x base score 10.0)
- CVSS v4: 10.0
- EPSS exploit prediction: 2% (73rd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-6690
- Weakness: CWE-94
- Affected product: Kidocode Crawl4ai
- Published:
- Last modified:
Description
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 write access, sensitive data exfiltration, and lateral movement within internal networks.
Frequently asked questions
- What is CVE-2026-26216?
- 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 write access, sensitive data exfiltration, and lateral movement within internal networks.
- How severe is CVE-2026-26216?
- CVE-2026-26216 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-26216 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-26216?
- CVE-2026-26216 affects Kidocode Crawl4ai. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-26216?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2026-26216 have an EU (EUVD) identifier?
- Yes. CVE-2026-26216 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6690.
- When was CVE-2026-26216 published?
- CVE-2026-26216 was published on 2026-02-12 and last updated on 2026-06-17.
References
- https://github.com/unclecode/crawl4ai/blob/main/docs/blog/release-v0.8.0.md
- 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
Affected products (1)
- cpe:2.3:a:kidocode:crawl4ai:*:*:*:*:*:*:*:*
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