Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Crawl4AI versions before 0.9.0 have an unauthenticated server-side request forgery flaw in the Docker API's streaming crawl endpoint (/crawl/stream, and /crawl when streaming is requested). The streaming path skipped the destination check used by the non-streaming path, so a remote client can make the server fetch internal or cloud-metadata addresses and receive the response body. Upgrade to Crawl4AI 0.9.0 or later. Restricting the container's outbound network access also limits what it can reach, though enabling authentication does not stop the forged requests.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 8.6 | High | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0044, the 39th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:04 UTC First seen by agentprime
- 31 Oct 2026, 15:04 UTC Confirmed by OSV