CVE-2026-42796 | BDVDB-2026-330394 Detail

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.

Impact#

Weaknesses#

References#

Exploit#

History#

1. Version 12026-05-04Record published in the CVE List.
2. Version 22026-11-08Most recent update recorded in the CVE List.