DEBIAN-CVE-2026-59969
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-59969
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-59969.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-59969
- Upstream
- Published
- 2026-09-16T10:16:51Z
- Modified
- 2026-09-21T05:03:31Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
Apache ZooKeeper quorum TLS fails to enforce peer hostname verification in FIPS-mode deployments. When sslQuorum=true, zookeeper.fips-mode=true, ssl.quorum.hostnameVerification=true, and ssl.quorum.clientHostnameVerification=true are enabled, the Java SSLSocket quorum path accepts a CA-trusted peer certificate whose SAN does not match the connected host. A malicious or misissued peer certificate can therefore join quorum traffic, participate in leader election, and enter replication flows. Users are recommended to upgrade to version 3.8.7 or 3.9.6, which fixes the issue.
- References
Affected packages
Debian:12 / zookeeper
Package
- Name
- zookeeper
- Purl
- pkg:deb/debian/zookeeper?arch=source&distro=bookworm
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Debian:13 / zookeeper
Package
- Name
- zookeeper
- Purl
- pkg:deb/debian/zookeeper?arch=source&distro=trixie
Debian:14 / zookeeper
Package
- Name
- zookeeper
- Purl
- pkg:deb/debian/zookeeper?arch=source&distro=forky