Skip to content
EXYS
Back to the CVEs

CVE-2026-109237

8.1, high

Unclecode crawl4ai Deserialization of Untrusted Data Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
8.1, high high CVSS v3.1
EPSS, next 30 days
0.3% higher than 23.9% of scored CVEs
Exploitation
No public evidence
Published
12 Oct 20266 days ago

Description

Crawl4AI from 0.9.0 before 0.9.4 contains an untrusted-config gate bypass that allows non-admin API clients to construct forbidden config objects by wrapping them in dict-type wrappers. Attackers can send a laundered LLMConfig with api_token set to an env reference via /config/dump to read SECRET_KEY and provider keys, enabling admin JWT forgery.

Details

Vendor
Unclecode
Product
crawl4ai
Weakness
CWE-502 (opens in a new tab)
Status
Received
Updated
12 Oct 2026
Assigner
disclosure@vulncheck.com

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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-2026-109238 Unclecode crawl4ai Server-Side Request Forgery Vulnerability EPSS 0.3% 8.6, high
  • CVE-2026-91940 Unclecode crawl4ai Path Traversal Vulnerability EPSS 0.5% 7.5, high

Beyond this page

Is CVE-2026-109237 in your network?

This page tells you how dangerous CVE-2026-109237 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.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2026-109237 comes with the devices to patch.

    Learn more about EXYS7600 OCELOT

  • 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.

    Learn more about EXYS7950 KONDRA
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 18 Oct 2026, not the live upstream state.