Shovel and Federation plugins perform URI obfuscation in their worker (link) state. The encryption key used to encrypt
the URI was seeded with a predictable secret.
This means that in case of certain exceptions related to Shovel and Federation plugins,
reasonably easily deobfuscatable data could appear in the node log.
Patched versions correctly use a cluster-wide secret for that purpose.
Patches
Patched versions:
3.10.2
3.9.18
3.8.32
Workarounds
Disable Shovel and Federation plugins.
Credits
RabbitMQ core team would like to thank Lajos @luos Gerecs and Anh Nguyen from Erlang Solutions
for responsibly disclosing and working with us on a patch for this vulnerability.