Is CVE-2026-109238 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-109238 being exploited in the wild.

How severe is CVE-2026-109238?

High severity, with a CVSS score of 8.6, published 12 October 2026.

Which products and versions are affected?

Unclecode Crawl4AI 0.7.0 to 0.9.3.

How is CVE-2026-109238 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-109238?

Check whether you run Unclecode Crawl4AI at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-109238: Crawl4AI server-side request forgery via link_preview_config

CVE-2026-109238 · Severity: high · CVSS 8.6 · Published 2026-10-12

Crawl4AI is a web scraping library that fetches and parses web pages. Versions 0.7.0 through 0.9.3 contain a flaw that allows attackers to use the /crawl API endpoint to reach internal, private, and cloud-metadata addresses on the server's network, exposing sensitive information like page titles, application versions, and internal URLs. This enables reconnaissance and data exfiltration attacks against infrastructure protected by the server.

Technologies: Unclecode Crawl4AI. Vendors: Unclecode.

Quick answers

Is CVE-2026-109238 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-109238 being exploited in the wild.
How severe is CVE-2026-109238?: High severity, with a CVSS score of 8.6, published 12 October 2026.
Which products and versions are affected?: Unclecode Crawl4AI 0.7.0 to 0.9.3.
Is there a fix for CVE-2026-109238?: Yes: fixed in 0.9.4. Until then: Strip link_preview_config from incoming crawler_config request bodies at your proxy layer. Restrict the container's outbound network access via egress firewall rules and disable access to cloud metadata services. Enable authentication and limit API access to /crawl endpoints. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-109238 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-109238?: Check whether you run Unclecode Crawl4AI at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: 0.9.4

Strip link_preview_config from incoming crawler_config request bodies at your proxy layer. Restrict the container's outbound network access via egress firewall rules and disable access to cloud metadata services. Enable authentication and limit API access to /crawl endpoints.

Technical details

A server-side request forgery vulnerability in AsyncUrlSeeder's link preview functionality fails to enforce the same destination validation applied to other outbound requests. When link_preview_config is enabled with include_external=true and include_patterns set, the seeder fetches links without routing through the pinning proxy or validating IP ranges, allowing requests to internal, private, link-local, and cloud-metadata addresses. The parsed response headers are returned to the caller, disclosing internal page titles, meta tags, versions, and CSRF tokens.

Affected products

unclecode Crawl4AI 0.7.0 to 0.9.3

Timeline

2026-09-23: disclosed
2026-09-23: patched: version 0.9.4 released
2026-10-12: advisory

References

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