CVE-2026-24308

Name	CVE-2026-24308
Description	Improper handling of configuration values in ZKConfig in Apache ZooKeeper 3.8.5 and 3.9.4 on all platforms allows an attacker to expose sensitive information stored in client configuration in the client's logfile. Configuration values are exposed at INFO level logging rendering potential production systems affected by the issue. Users are recommended to upgrade to version 3.8.6 or 3.9.5 which fixes this issue.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs	1130497

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
zookeeper (PTS)	bullseye (security), bullseye	3.4.13-6+deb11u1	vulnerable
	bookworm	3.8.0-11+deb12u2	vulnerable
	bookworm (security)	3.8.0-11+deb12u1	vulnerable
	trixie	3.9.3-1+deb13u1	vulnerable
	forky, sid	3.9.5-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
zookeeper	source	(unstable)	3.9.5-1			1130497

https://lists.apache.org/thread/qng3rtzv2pqkmko4rhv85jfplkyrgqdr