A vulnerability was found in kasuganosoras Pigeon 1.0.177. It has been declared as critical. This vulnerability affects unknown code of the file /pigeon/imgproxy/index.php. The manipulation of the argument url leads to server-side request forgery. The attack can be initiated remotely. Upgrading to version 1.0.181 is able to address this issue. The patch is identified as 84cea5fe73141689da2e7ec8676d47435bd6423e. It is recommended to upgrade the affected component.

In Dovecot before 2.2.36.4 and 2.3.x before 2.3.7.2 (and Pigeonhole before 0.5.7.2), protocol processing can fail for quoted strings. This occurs because '\0' characters are mishandled, and can lead to out-of-bounds writes and remote code execution.

Pigeon Server 3.02.0143 and earlier allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a long login name sent to port 3103.