Users are recommended to upgrade to version 3.8.7 or 3.9.6, which fixes the issue.
Analysis and contextual insights are available on OpenCVE Cloud.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
Sign in to view the affected projects.
No advisories yet.
Fri, 18 Sep 2026 14:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:apache:zookeeper:*:*:*:*:*:*:*:* |
Thu, 17 Sep 2026 21:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Apache
Apache zookeeper |
|
| Vendors & Products |
Apache
Apache zookeeper |
Thu, 17 Sep 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
cvssV3_1
|
Wed, 16 Sep 2026 11:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
Wed, 16 Sep 2026 09:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Apache ZooKeeper: Improper validation of certificate with host mismatch in FIPS mode | |
| Weaknesses | CWE-297 | |
| References |
|
Status: PUBLISHED
Assigner: apache
Published:
Updated: 2026-09-17T19:17:01.444Z
Reserved: 2026-07-07T18:50:40.959Z
Link: CVE-2026-59969
Updated: 2026-09-17T19:16:56.939Z
Status : Analyzed
Published: 2026-09-16T10:16:51.220
Modified: 2026-09-18T14:31:23.357
Link: CVE-2026-59969
No data.
OpenCVE Enrichment
Updated: 2026-09-18T11:45:07Z