Medium severity · published Oct 12, 2026
CVE-2026-109239
Crawl4AI before 0.9.4 Blind SSRF via RobotsParser.can_fetch robots.txt Fetch
5.3
CVSS
0.3%
EPSS
No
On KEV
Description
Crawl4AI before 0.9.4 contains a blind server-side request forgery vulnerability in RobotsParser.can_fetch that lets unauthenticated attackers bypass Docker server egress controls. Attackers can enable check_robots_txt and use redirects or DNS rebinding to reach internal, loopback, or cloud-metadata addresses for service discovery.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 18% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CR
crawl4ai · unclecode
before 0.9.4 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-109239
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-109239
vendor-advisory
https://github.com/unclecode/crawl4ai/security/advisories/GHSA-f77g-77vp-r96v
third-party-advisory
https://www.vulncheck.com/advisories/crawl4ai-before-0.9.4-blind-ssrf-via-robotsparser-can-fetch-robots-txt-fetch
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