Drupal reports RCE via certain tarball archive upload due to CVE-2020-28948 and CVE-2020-28949. CVE-2020-28948: Archive_Tar through 1.4.10 allows an unserialization attack because phar: is blocked but PHAR: is not blocked. CVE-2020-28949: Archive_Tar through 1.4.10 has :// filename sanitization only to address phar attacks, and thus any other stream-wrapper attack (such as file:// to overwrite files) can still succeed.
Dead tracker.