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CVE PROGRAM SOURCE RECORD8.7 High

CVE-2026-119119

Crawl4AI before 0.9.5 Denial of Service via Unbounded CrawlerRunConfig Delay Fields

Description

Crawl4AI before 0.9.5 contains a denial of service vulnerability in the Docker API server where _clamp_untrusted() fails to cap the delay_before_return_html, mean_delay, and max_range fields of untrusted CrawlerRunConfig bodies. Unauthenticated attackers can send huge values to /crawl or /crawl/stream to hold browser pages or stall the rate limiter, exhausting the page pool and blocking other crawls.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

unclecode crawl4ai

Default version status: unaffected

  • 0 to < 0.9.5affected
  • 0.9.5unaffected
pkg:pypi/crawl4ai

References