CVE-2026-11746 Central Dogma: Hard-coded ZooKeeper replication secret 'ch4n63m3' with silent fallback enables cluster takeover
Enabling ZooKeeper replication without a secret uses a hardcoded credential, allowing attackers to read logs or execute commands.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-11746?
CVE-2026-11746 is a critical vulnerability in LY Corporation Central Dogma, published on 22 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability has been identified in centraldogma-server versions prior to 0.84.0, where enabling ZooKeeper replication without setting replication.secret causes the server to silently fall back to a hard-coded, publicly known secret. This default credential authenticates the embedded ZooKeeper ensemble, allowing an attacker with network access to read the full replication log or join the quorum and execute arbitrary replicated commands across the cluster.
Weakness: CWE-798
Which versions are affected by CVE-2026-11746?
2 open source packages ship an affected version, including com.linecorp.centraldogma:centraldogma-server.
| Package | Affected | Fixed in |
|---|---|---|
com.linecorp.centraldogma:centraldogma-server Maven | All versions | 0.84.0 |
com.linecorp.centraldogma:centraldogma-server Maven | All versions | 0.84.0 |
How do I fix CVE-2026-11746?
Upgrade com.linecorp.centraldogma:centraldogma-server to 0.84.0 or later.
Is CVE-2026-11746 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11746 exists.
Sources
Also known as GHSA-2j95-gqxf-v3vg.