CVE-2026-91940
crawl4ai before 0.9.3 Arbitrary File Write via PDFContentScrapingStrategy
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
crawl4ai before 0.9.3 contains an arbitrary file write vulnerability in PDFContentScrapingStrategy where the _filter_untrusted_fields function fails to validate untrusted configuration fields. Attackers can submit crafted config bodies with malicious image_save_dir paths to write attacker-controlled bytes into any directory accessible to the service account.
| CWE | CWE-22 |
| Vendor | unclecode |
| Product | crawl4ai |
| Published | Sep 15, 2026 |
| Last Updated | Sep 15, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Affected Versions
unclecode / crawl4ai
0.9.0 < 0.9.3
References
Credits
🔍 manus-use