There are 2 open security issues in bookworm.
1 issue left for the package maintainer to handle:
- CVE-2020-26880:
(postponed; to be fixed through a stable update)
Sympa through 6.2.57b.2 allows a local privilege escalation from the sympa user account to full root access by modifying the sympa.conf configuration file (which is owned by sympa) and parsing it through the setuid sympa_newaliases-wrapper executable.
You can find information about how to handle this issue in the security team's documentation.