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CVE-2026-91940

7.5, high

Unclecode crawl4ai Path Traversal Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
7.5, high high CVSS v3.1
EPSS, next 30 days
0.5% higher than 38.3% of scored CVEs
Exploitation
No public evidence
Published
15 Sept 2026a month ago

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.

Details

Vendor
Unclecode
Product
crawl4ai
Weakness
CWE-22 (opens in a new tab)
Status
Awaiting analysis
Updated
16 Sept 2026
Assigner
disclosure@vulncheck.com

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

References 2

Advisories 1

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Unclecode CVEs

Every Unclecode CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-109237 Unclecode crawl4ai Deserialization of Untrusted Data Vulnerability EPSS 0.3% 8.1, high
  • CVE-2026-109238 Unclecode crawl4ai Server-Side Request Forgery Vulnerability EPSS 0.3% 8.6, high

Beyond this page

Is CVE-2026-91940 in your network?

This page tells you how dangerous CVE-2026-91940 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

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  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 16 Oct 2026, not the live upstream state.