CVE-2026-56266 (GCVE-0-2026-56266)

Vulnerability from cvelistv5 – Published: 2026-06-22 21:04 – Updated: 2026-06-22 21:04
VLAI
Title
Crawl4AI - Server-Side Request Forgery via Direct Crawl Endpoints
Summary
Crawl4AI before 0.8.7 contains a server-side request forgery vulnerability in the /crawl, /crawl/stream, /md, and /llm endpoints that fetch arbitrary user-supplied URLs without validation. Unauthenticated attackers can bypass the internal-address blocklist using IPv6-mapped IPv4 addresses to reach internal services and cloud metadata endpoints.
Severity
9.2 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N
8.6 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
Impacted products
Vendor Product Version
Crawl4AI Crawl4AI Affected: 0 , < 0.8.7 (semver)
Unaffected: 0.8.7 (semver)
Create a notification for this product.
Date Public
2026-06-16 00:00
Show details on NVD website
To clipboard 

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          "tags": [
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    "dateReserved": "2026-06-20T01:42:20.615Z",
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    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2"
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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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