Quick answers
- Is CVE-2026-57573 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-57573 being exploited in the wild.
- How severe is CVE-2026-57573?
- High severity, with a CVSS score of 8.6, published 6 July 2026.
- Which products and versions are affected?
- crawl4ai (PyPI) ECOSYSTEM:introduced=0,fixed=0.9.0.
- Is there a fix for CVE-2026-57573?
- Yes. crawl4ai (PyPI): upgrade to 0.9.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-57573 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-57573?
- Check whether you run crawl4ai (PyPI) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- crawl4ai (PyPI): upgrade to 0.9.0 or later
pip install "crawl4ai>=0.9.0"
Technical details
A Server-Side Request Forgery (SSRF) vulnerability exists in Crawl4AI's Docker API server due to missing destination validation in the streaming request handler. While the standard `/crawl` path implemented SSRF protections, the `handle_stream_crawl_request` function (used by `/crawl/stream` and `/crawl` with `stream=true`) passed URLs directly to the crawler without checking if they pointed to internal, private, or link-local addresses. An unauthenticated remote attacker can exploit this to scan internal networks or retrieve sensitive data from cloud metadata services (e.g., AWS/GCP metadata endpoints at 169.254.169.254). The issue is resolved in version 0.9.0 by applying global-routability checks to all seed URLs in the streaming handler.
Affected products
- unclecode crawl4ai < 0.9.0
Identifiers
- CVE-2026-57573
- GHSA-wm69-2pc3-rmmf
- PYSEC-2026-2140
Timeline
- 2026-06-18: patched: Fix included in version 0.9.0 release
- 2026-07-06: disclosed: CVE-2026-57573 published