High severity7.5NVD Advisory· Published Sep 15, 2026
CVE-2026-91940
CVE-2026-91940
Description
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.
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Affected products
1Patches
Vulnerability mechanics
References
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