CVE-2026-57571
CVE-2026-57571 · Crawl4AI arbitrary file write via download filename path traversal
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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.
CVSS 9.6 · Kritisch · EPSS 0,8% · Korrektur verfügbar
- Veröffentlicht
- Aktualisiert
Technologie-Stack: python
Betroffene Produkte und Versionen
crawl4ai
- Softwareversionen
- < 0.9.0: Betroffen
Keine Korrektur veröffentlicht
crawl4ai PyPI
- Softwareversionen
- 0.3.0
- 0.3.1
- 0.3.2
- 0.3.3
- 0.3.4
- 0.3.5
- 0.3.6
- 0.3.7
- 0.3.71
- 0.3.72
- 0.3.73
- 0.3.731
- 0.3.74
- 0.3.741
- 0.3.742
- 0.3.743
- 0.3.744
- 0.3.745
- 0.3.746
- 0.3.8
- 0.4.0
- 0.4.1
- 0.4.21
- 0.4.22
- 0.4.23
- 0.4.24
- 0.4.241
- 0.4.242
- 0.4.243
- 0.4.244
- 0.4.245
- 0.4.246
- 0.4.247
- 0.4.248
- 0.4.248b3
- 0.4.3b1
- 0.4.3b2
- 0.4.3b3
- 0.5.0
- 0.5.0.post1
- 0.5.0.post2
- 0.5.0.post3
- 0.5.0.post4
- 0.5.0.post5
- 0.5.0.post6
- 0.5.0.post7
- 0.5.0.post8
- 0.6.0
- 0.6.0rc1
- 0.6.1
- 0.6.2
- 0.6.3
- 0.7.0
- 0.7.1
- 0.7.2
- 0.7.3
- 0.7.4
- 0.7.5
- 0.7.6
- 0.7.7
- 0.7.8
- 0.8.0
- 0.8.5
- 0.8.6
- 0.8.7
- 0.8.8
- 0.8.9
- Betroffene Versionsbereiche
- ECOSYSTEM: < 0.9.0
Auf 0.9.0 aktualisieren