The package github.com/containrrr/shoutrrr/pkg/util before 0.6.0 are vulnerable to Denial of Service (DoS) via the util.PartitionMessage function. Exploiting this vulnerability is possible by sending exactly 2000, 4000, or 6000 characters messages.
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-25891.json"