CVE-2026-91943 Crawl4AI before 0.9.3 SSRF via PDFContentScrapingStrategy
Authenticated attackers can exploit SSRF in Crawl4AI to access internal services and exfiltrate data via PDF scraping.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-91943?
CVE-2026-91943 is a high-severity server-side request forgery vulnerability in unclecode crawl4ai, published on 15 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Crawl4AI before 0.9.3 contains a server-side request forgery vulnerability in PDFContentScrapingStrategy where _get_pdf_path() re-downloads targets with Python requests without egress validation. Authenticated attackers can supply URLs that redirect to internal addresses or use DNS rebinding to access internal services, exfiltrating responses through PDF text extraction in crawl results.
Weakness: CWE-918
Which versions are affected by CVE-2026-91943?
How do I fix CVE-2026-91943?
No fix has been published for CVE-2026-91943 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-91943 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-91943 exists.
Sources
Also known as GHSA-92qr-m259-5rqq, GHSA-q5rj-45vw-vp2g.