CVE-2026-112363

MEDIUM 5.3

Crawl4AI 0.8.7 through 0.9.5 SSRF Bypass via SSLCertificate.from_url URL Userinfo

CVSS Score

5.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-918
Vendor	unclecode
Product	crawl4ai
Published	Oct 19, 2026
Last Updated	Oct 19, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Affected Versions

unclecode / crawl4ai

0.8.7 ≤ 0.9.5

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/unclecode/crawl4ai/pull/2304 github.com: https://github.com/unclecode/crawl4ai/blob/v0.9.5/crawl4ai/ssl_certificate.py github.com: https://github.com/unclecode/crawl4ai/blob/v0.9.5/crawl4ai/async_crawler_strategy.py github.com: https://github.com/unclecode/crawl4ai/blob/v0.9.5/deploy/docker/utils.py vulncheck.com: https://www.vulncheck.com/advisories/crawl4ai-0.8.7-through-0.9.5-ssrf-bypass-via-sslcertificate-from-url-url-userinfo

Credits

2gg-bit Zachariah Mithani