Crawl4AI is an open-source LLM-friendly web crawler and scraper. Prior to 0.9.0, when the crawler saves a downloaded file, the destination filename was taken from attacker-influenced input and joined to the downloads directory with no confinement. A filename containing an absolute path or traversal escaped the downloads directory, giving an arbitrary file write with attacker-controlled contents; the HTTP crawler path uses the response Content-Disposition filename and the browser crawler path uses the download's suggested filename. Because the written bytes are attacker-controlled, this can escalate to remote code execution. This issue is fixed in version 0.9.0.
References
| Link | Resource |
|---|---|
| https://github.com/unclecode/crawl4ai/commit/60886d1a0c52682e4c83a7cef9dfac417fff6bd2 | Patch |
| https://github.com/unclecode/crawl4ai/security/advisories/GHSA-2jq4-q6vv-4cp3 | Mitigation Vendor Advisory Exploit |
Configurations
History
07 Jul 2026, 19:07
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Kidocode
Kidocode crawl4ai |
|
| References | () https://github.com/unclecode/crawl4ai/commit/60886d1a0c52682e4c83a7cef9dfac417fff6bd2 - Patch | |
| References | () https://github.com/unclecode/crawl4ai/security/advisories/GHSA-2jq4-q6vv-4cp3 - Mitigation, Vendor Advisory, Exploit | |
| CPE | cpe:2.3:a:kidocode:crawl4ai:*:*:*:*:*:*:*:* |
06 Jul 2026, 21:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-07-06 21:16
Updated : 2026-07-07 19:07
NVD link : CVE-2026-57571
Mitre link : CVE-2026-57571
CVE.ORG link : CVE-2026-57571
JSON object : View
Products Affected
kidocode
- crawl4ai
