---
title: "CVE-2026-119119: Crawl4AI - Denial of Service"
description: "Crawl4AI < 0.9.5 contains a denial of service caused by failure to cap delay_before_return_html, mean_delay, and max_range fields in untrusted CrawlerRunConfig bodies in Docker API server, letting unauthenticated attackers exhaust page pool and block crawls, exploit requires unauthenticated access to /crawl or /crawl/stream endpoints."
url: https://panop.io/threat-heartbeat/CVE-2026-119119/
---

# CVE-2026-119119 Crawl4AI - Denial of Service

Crawl4AI < 0.9.5 contains a denial of service caused by failure to cap delay\_before\_return\_html, mean\_delay, and max\_range fields in untrusted CrawlerRunConfig bodies in Docker API server, letting unauthenticated attackers exhaust page pool and block crawls, exploit requires unauthenticated access to /crawl or /crawl/stream endpoints.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.36% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-119119)

## Details

Type

Denial of Service

Impact

Denial Of Service

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Published

29 October 2026

Updated

31 October 2026

Weakness

[CWE-770](https://cwe.mitre.org/data/definitions/770.html)

## Vendor fix

Update to version 0.9.5 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-119119](https://nvd.nist.gov/vuln/detail/CVE-2026-119119)
- [https://github.com/unclecode/crawl4ai/security/advisories/GHSA-rhjm-7hj7-75fx](https://github.com/unclecode/crawl4ai/security/advisories/GHSA-rhjm-7hj7-75fx)
- [https://www.vulncheck.com/advisories/crawl4ai-before-0.9.5-denial-of-service-via-unbounded-crawlerrunconfig-delay-fields](https://www.vulncheck.com/advisories/crawl4ai-before-0.9.5-denial-of-service-via-unbounded-crawlerrunconfig-delay-fields)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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