Crawl4AI up to 0.8.7 PDF Endpoint output_path path traversal

Summaryinfo

A vulnerability was found in Crawl4AI up to 0.8.7. It has been rated as critical. Impacted is an unknown function of the component PDF Endpoint. This manipulation of the argument output_path causes path traversal. This vulnerability appears as CVE-2026-56258. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Crawl4AI up to 0.8.7 and classified as critical. Affected by this vulnerability is an unknown function of the component PDF Endpoint. The manipulation of the argument output_path with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Crawl4AI before 0.8.8 contains an arbitrary file write vulnerability in the screenshot and PDF endpoints that allows unauthenticated attackers to write files outside the intended directory via symlink and time-of-check-time-of-use (TOCTOU) attacks on the output_path parameter. Remote attackers can exploit insufficient path validation and symlink following to achieve arbitrary file write and potential code execution on systems where the runtime user has write access to executable or cron locations.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-56258 since 06/19/2026. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

Upgrading to version 0.8.8 eliminates this vulnerability.

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Productinfo

Name

• Crawl4AI

Version

• 0.8.0
• 0.8.1
• 0.8.2
• 0.8.3
• 0.8.4
• 0.8.5
• 0.8.6
• 0.8.7

CPE 2.3info

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CPE 2.2info

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