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Arelle

1 CVEs product

Monthly

CVE-2026-42796 May 04, 17:19 CRITICAL POC PATCH Act Now

Remote code execution in Arelle webserver (versions prior to 2.39.10) allows unauthenticated attackers to execute arbitrary Python code by submitting malicious plugin URLs to the /rest/configure endpoint. The vulnerability stems from the webserver's plugin manager accepting and executing external Python files without authentication or URL validation. A patch is available in version 2.39.10 (GitHub PR #2320). CVSS 9.8 with network vector, no privileges required, and EPSS data not provided. No CISA KEV listing or confirmed active exploitation at time of analysis.

Authentication Bypass RCE Python Arelle
NVD GitHub
CVSS 4.0
9.2
EPSS
0.3%
EPSS 0% CVSS 9.2
CRITICAL POC PATCH Act Now

Remote code execution in Arelle webserver (versions prior to 2.39.10) allows unauthenticated attackers to execute arbitrary Python code by submitting malicious plugin URLs to the /rest/configure endpoint. The vulnerability stems from the webserver's plugin manager accepting and executing external Python files without authentication or URL validation. A patch is available in version 2.39.10 (GitHub PR #2320). CVSS 9.8 with network vector, no privileges required, and EPSS data not provided. No CISA KEV listing or confirmed active exploitation at time of analysis.

Authentication Bypass RCE Python +1
NVD GitHub

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