CVE-2026-112363
Crawl4AI 0.8.7 through 0.9.5 SSRF Bypass via SSLCertificate.from_url URL Userinfo
- State
- Published
- Severity
- 6.9 Medium
- Published
- Oct 19, 2026
- Updated
- Oct 19, 2026
- Reserved
- Oct 19, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.3 Medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N | VulnCheck |
Weaknesses
- CWE-918 Server-Side Request Forgery (SSRF)
Affected Products
| Product | Versions |
|---|---|
crawl4aiunclecode |
|
References
- https://github.com/unclecode/crawl4ai/pull/2304patchissue-tracking
- https://github.com/unclecode/crawl4ai/blob/v0.9.5/crawl4ai/ssl_certificate.pytechnical-description
- https://github.com/unclecode/crawl4ai/blob/v0.9.5/crawl4ai/async_crawler_strategy.pytechnical-description
- https://github.com/unclecode/crawl4ai/blob/v0.9.5/deploy/docker/utils.pytechnical-description
- VulnCheck Advisory: Crawl4AI 0.8.7 through 0.9.5 SSRF Bypass via SSLCertificate.from_url URL Userinfothird-party-advisory
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