CVE-2026-57573Network attack vector

Unauthenticated SSRF via unvalidated streaming seed URLs

Published Jul 6, 2026 · Updated Jul 6, 2026

SSRF in the Crawl4AI Docker API server before 0.9.0 allows remote attackers to read internal services through streaming crawl requests. The handle_stream_crawl_request handler sends seed URLs to the crawler without applying validate_url_destination, unlike the non-streaming path. An unauthenticated network client can submit a private or link-local URL and receive the fetched response body, exposing internal services or cloud metadata.

CVSS severity8.6
High
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in the Crawl4AI Docker API server before 0.9.0 allows remote attackers to read internal services through streaming crawl requests. The handle_stream_crawl_request handler sends seed URLs to the crawler without applying validate_url_destination, unlike the non-streaming path. An unauthenticated network client can submit a private or link-local URL and receive the fetched response body, exposing internal services or cloud metadata.

The record

CVE
CVE-2026-57573
Published
Jul 6, 2026
Updated
Jul 6, 2026
Vendor
Crawl4AI
Product
Crawl4AI
Classifications
CWE-918, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.9.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Crawl4AI · Crawl4AIversion=< 0.9.0

Published CVSS scores

8.6GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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