CVE-2026-57573

HIGH
MEDIUM Priority: 0.04 BB Relevance: 77/100
Published: 2026-07-06 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Changed
C: High
I: None
A: None

Description

Crawl4AI is an open-source LLM-friendly web crawler and scraper. Prior to 0.9.0, the Docker API server applied its SSRF destination check on the non-streaming /crawl path but not on the streaming path. handle_stream_crawl_request passed seed URLs straight to the crawler with no destination validation, allowing a remote unauthenticated client to call POST /crawl/stream or POST /crawl with crawler_config.stream=true with a URL pointing at an internal, private, or link-local address; the server fetched it and streamed the response body back. This issue is fixed in version 0.9.0.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
kidocode crawl4ai < 0.9.0

Bug Bounty Relevance

77 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

8.6 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

EPSS — Exploitation Probability

0.45%
Raw Score 0.004450
Percentile 38.7%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00445
2026-10-28
0.00445

Intelligence Sources

nvd ref →