CVE-2026-11746

Central Dogma: Hard-coded ZooKeeper replication secret 'ch4n63m3' with silent fallback enables cluster takeover

Published 22 Jun 2026Modified 25 Oct 2026CWE 798

In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

GHSA9.4CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Trivy's own label is CRITICAL. Rated critical by GHSA.

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.

Affected packages and fixed versions

Source	Package	Fixed in
maven::GitHub Security Advisory Maven	com.linecorp.centraldogma:centraldogma-server	0.84.0

References

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