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.
Advisories
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Fixes
Solution
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Workaround
No workaround given by the vendor.
References
History
Tue, 07 Jul 2026 15:30:00 +0000
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ssvc
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Mon, 06 Jul 2026 23:45:00 +0000
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Unclecode
Unclecode crawl4ai |
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| Vendors & Products |
Unclecode
Unclecode crawl4ai |
Mon, 06 Jul 2026 20:30:00 +0000
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| Description | 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. | |
| Title | Crawl4AI arbitrary file write via download filename path traversal | |
| Weaknesses | CWE-22 CWE-59 |
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| References |
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| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-07-07T14:53:40.859Z
Reserved: 2026-06-24T18:49:56.207Z
Link: CVE-2026-57571
Updated: 2026-07-07T14:53:36.739Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-07-07T05:30:04Z