CVE-2026-26217
Crawl4AI Has Local File Inclusion in Docker API via file:// URLs
Impact
A local file inclusion vulnerability exists in the Crawl4AI Docker API. The /execute_js, /screenshot, /pdf, and /html endpoints accept file:// URLs, allowing attackers to read arbitrary files from the server filesystem. Attack Vector: ```json POST /execute_js { "url": "file:///etc/passwd", "scripts": ["document.body.innerText"] } ``` Impact An unauthenticated attacker can: - Read sensitive files (/etc/passwd, /etc/shadow, application configs) - Access environment variables via /proc/self/environ - Discover internal application structure - Potentially read credentials and API keys Workarounds 1. Disable the Docker API 2. Add authentication to the API 3. Use network-level filtering
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | crawl4ai | < 0.8.0 | 0.8.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Kidocode | Crawl4ai | before 0.8.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/unclecode/crawl4ai/blob/main/docs/blog/release-v0.8.0.md
- https://github.com/unclecode/crawl4ai/security/advisories/GHSA-vx9w-5cx4-9796
- https://www.vulncheck.com/advisories/crawl4ai-docker-api-local-file-inclusion-via-file-url-handling
- https://github.com/advisories/GHSA-vx9w-5cx4-9796
- https://github.com/unclecode/crawl4ai/blob/release/v0.8.0/docs/blog/release-v0.8.0.md
- https://github.com/unclecode/crawl4ai/blob/release/v0.8.0/docs/migration/v0.8.0-upgrade-guide.md
- https://nvd.nist.gov/vuln/detail/CVE-2026-26217
- https://github.com/pypa/advisory-database/tree/main/vulns/crawl4ai/PYSEC-2026-34.yaml