There is 1 open security issue in bullseye.
commit d59c3f12e4512d4034b70d718dac4d30d65e4167 Author: Simon McVittie <smcv@debian.org> Date: Mon Jan 20 11:51:12 2025 +0000 d/changelog: Fix Ubuntu version information in 1.15.91-1 changelog Ubuntu 22.04 still needed .pkla files, it is only 24.04 that has caught up with upstream polkitd. This is no longer necessary since Debian 12 and Ubuntu 24.04.