GHSA-WM69-2PC3-RMMF

The Docker API server applied its SSRF destination check (validate_url_destination) 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. A remote, unauthenticated client could call POST /crawl/stream (or POST /crawl with crawler_config.stream=true, which short-circuits to the same handler) with a URL pointing at an internal, private, or link-local address; the server fetched it and streamed the response body back. The Docker API is unauthenticated by default.

Affected paths

POST /crawl/stream, and POST /crawl with crawler_config.stream=true (both route to handle_stream_crawl_request, deploy/docker/api.py).

Workarounds

• Upgrade to the patched version (0.9.0).
• Enable authentication and restrict who can reach the API (note: this does not constrain which URL the API fetches).
• Restrict the container's outbound network access (egress firewall / no metadata route).

Credits

KOH Jun Sheng - reported the streaming-path SSRF with a runnable PoC and noted the count-based regression test that masked it, plus the shared root cause with redirect/deep-crawl link following.

Unauthenticated read server-side request forgery: an attacker reads internal-only services and cloud-metadata endpoints (e.g. http://169.254.169.254/ for IAM credentials), with the response body streamed back. This is the same class and severity as the project's prior "SSRF via Direct Crawl Endpoints" advisory; /crawl/stream is part of that endpoint family and was never covered by the destination check.

Untrusted input controls the target URL of a server-initiated request, which may reach internal services not otherwise accessible from outside. Typical impact: access to internal metadata services, internal APIs, or cloud credentials.

GHSA-WM69-2PC3-RMMF has a CVSS score of 8.6 (High). The vector is network-reachable, no privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (0.9.0); upgrading removes the vulnerable code path.

Kodem intelligence

handle_stream_crawl_request now validates every seed URL's destination with the same global-routability check as handle_crawl_request, before any fetch. The SSRF regression test was hardened to assert per-handler coverage (including the streaming handler) rather than a bare occurrence count, which previously let this gap pass.

1. What is GHSA-WM69-2PC3-RMMF? GHSA-WM69-2PC3-RMMF is a high-severity server-side request forgery (SSRF) vulnerability in crawl4ai (pip), affecting versions <= 0.8.9. It is fixed in 0.9.0. Untrusted input controls the target URL of a server-initiated request, which may reach internal services not otherwise accessible from outside.
2. How severe is GHSA-WM69-2PC3-RMMF? GHSA-WM69-2PC3-RMMF has a CVSS score of 8.6 (High). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
3. Which versions of crawl4ai are affected by GHSA-WM69-2PC3-RMMF? crawl4ai (pip) versions <= 0.8.9 is affected.
4. Is there a fix for GHSA-WM69-2PC3-RMMF? Yes. GHSA-WM69-2PC3-RMMF is fixed in 0.9.0. Upgrade to this version or later.
5. Is GHSA-WM69-2PC3-RMMF exploitable, and should I be worried? Whether GHSA-WM69-2PC3-RMMF is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
6. What actually determines whether GHSA-WM69-2PC3-RMMF is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
7. How do I fix GHSA-WM69-2PC3-RMMF? Upgrade crawl4ai to 0.9.0 or later.