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CVE PROGRAM SOURCE RECORD9.2 Critical

CVE-2026-42796

Arelle < 2.39.10 Unauthenticated RCE via /rest/configure

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Arelle Arelle

Default version status: affected

  • 0 to < 2.39.10affected

References