CVE-2026-112363
CVE-2026-112363 · Crawl4AI 0.8.7 through 0.9.5 SSRF Bypass via SSLCertificate.from_url URL Userinfo
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Crawl4AI from 0.8.7 through 0.9.5 contains a server-side request forgery vulnerability in the Docker API server that allows unauthenticated attackers to bypass destination checks via URL userinfo parsing differences. Attackers can set fetch_ssl_certificate=true with crafted userinfo URLs so SSLCertificate.from_url connects to internal hosts on port 443, probing reachability and leaking certificate details.
CVSS 6.9 · Medium · EPSS 0.2%
- Published
- Updated
Affected products and versions
crawl4ai
- Versions
- ≥ 0.8.7, ≤ 0.9.5: Affected (semver)
No fix published
Original sources
- https://github.com/unclecode/crawl4ai/pull/2304
- https://github.com/unclecode/crawl4ai/blob/v0.9.5/crawl4ai/ssl_certificate.py
- https://github.com/unclecode/crawl4ai/blob/v0.9.5/crawl4ai/async_crawler_strategy.py
- https://github.com/unclecode/crawl4ai/blob/v0.9.5/deploy/docker/utils.py
- https://www.vulncheck.com/advisories/crawl4ai-0.8.7-through-0.9.5-ssrf-bypass-via-sslcertificate-from-url-url-userinfo
- https://nvd.nist.gov/vuln/detail/CVE-2026-112363