A race condition exists in the Tang server functionality for key generation and key rotation. This flaw results in a small time window where Tang private keys become readable by other processes on the same host.
https://lists.debian.org/debian-lts-announce/2023/11/msg00004.html
https://github.com/latchset/tang/commit/8dbbed10870378f1b2c3cf3df2ea7edca7617096