Description

Arelle before 2.39.10 contains an unauthenticated remote code execution vulnerability in the /rest/configure REST endpoint that accepts a plugins query parameter and forwards it to the plugin manager without authentication or authorization. Attackers can supply a URL to a malicious Python file through the plugins parameter, causing the Arelle webserver to download and execute the attacker-controlled code within the Arelle process with its privileges.

INFO

Published Date :

2026-05-04T17:19:43.020Z

Last Modified :

2026-05-04T20:21:36.238Z

Source :

VulnCheck
AFFECTED PRODUCTS

The following products are affected by CVE-2026-42796 vulnerability.

Vendors Products
Arelle
  • Arelle
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-42796.

URL Resource
https://github.com/Arelle/Arelle/pull/2320 cve-icon cve-icon
https://github.com/Arelle/Arelle/releases/tag/2.39.10 cve-icon cve-icon
https://www.vulncheck.com/advisories/arelle-unauthenticated-rce-via-rest-configure cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact