CVE-2026-91941
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.
Scoring
- Severity
- HIGH
- CVSS base score
- 8.7
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- EPSS probability
- 0.38%
- CWE
- CWE-400
- Published
- 2026-09-15
- Last modified
- 2026-09-15
Affected products
- unclecode crawl4ai
- unclecode crawl4ai
Weakness type
Related vulnerabilities
- CVE-2026-68763 — Apache Tomcat: DoS via allocation leak in HTTP/2 backlog tracking when a stream is reset
- CVE-2026-55247 — plone.app.event: Denial of service via iCalendar import
- CVE-2026-55248 — plone.app.portlets: Denial of service via RSS feed portlet
- CVE-2026-48050 — Arc: Unauthenticated access to Go debug pprof endpoints leaks runtime state and enables CPU-burn DoS
- CVE-2026-78551 — RansomLook Login Endpoint Allows Timing-Based Username Enumeration and Unthrottled Authentication Attempts
- CVE-2026-86452 — MISP Unauthenticated Mail Endpoints Allow Unbounded Storage Consumption and Request Flooding
- CVE-2026-86201 — PocketMine-MP before 5.41.1 LogDoS via LoginPacket clientData
- CVE-2026-85443 — MOOS core-moos through 10.4.0 MOOSDB Accept Loop Denial of Service