Server-side Request Forgery (SSRF) Affecting crawl4ai package, versions [,0.9.3)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published24 Oct 2026
- disclosed15 Sept 2026
- creditUnknown
Introduced: 15 Sep 2026
CVE-2026-91943 (opens in a new tab)How to fix?
Upgrade Crawl4AI to version 0.9.3 or higher.
Overview
Crawl4AI is a 🚀🤖 Crawl4AI: Open-source LLM Friendly Web Crawler & scraper
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via the PDFContentScrapingStrategy process, specifically when _get_pdf_path() re-downloads targets using Python requests without validating egress destinations. An attacker can access internal services and exfiltrate sensitive information by supplying crafted URLs that redirect to internal addresses or leverage DNS rebinding, with the extracted PDF text included in crawl results.