CVE-2026-91940

High

Description

crawl4ai before 0.9.3 contains an arbitrary file write vulnerability in PDFContentScrapingStrategy where the _filter_untrusted_fields function fails to validate untrusted configuration fields. Attackers can submit crafted config bodies with malicious image_save_dir paths to write attacker-controlled bytes into any directory accessible to the service account.

SeverityHigh

CVSS7.5

Exploit probability—

ProductUnclecode Crawl4ai

PublishedSep 15, 2026

First seenSep 15, 2026

Weakness typeCWE-22Path traversal

How to fix

Update

unclecode crawl4ai0.9.3 or later

Vendor advisories

github.com/unclecode/crawl4ai/security/advisories/GHSA-xpp7-j28w-2gvx

Affected products

Product	Affected versions	Fixed in
unclecode crawl4ai	0.9.0 ≤ v < 0.9.3	0.9.3

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