CVE-2026-91941: Unclecode CRAWL4AI

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Crawl4AI before 0.9.3 contains an uncontrolled resource consumption vulnerability in PDFContentScrapingStrategy that allows untrusted clients to cause denial of service. Attackers can select the PDF scraping strategy in POST requests to download large remote PDFs without size or page limits, exhausting disk, CPU, and bandwidth on shared workers.

Affected products

• Unclecode CRAWL4AI: before 0.9.3 (fixed in 0.9.3)

Published 2026-09-15. Last modified 2026-09-20.