CVE-2026-24281
unknown
CVSS v3
—
CVSS v4 NEW
—
VIR risk
—
Description
Apache ZooKeeper: Reverse-DNS fallback enables hostname verification bypass in ZooKeeper ZKTrustManager
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Mixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Affected | — |
| sid | Fixed | 3.9.5-1 |
| forky | Fixed | 3.9.5-1 |
| bullseye | Affected | — |
| bookworm | Affected | — |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Maven | org.apache.zookeeper:zookeeper | >=3.8.0,<3.8.6 | 3.8.6 |
| Maven | org.apache.zookeeper:zookeeper | >=3.9.0,<3.9.5 | 3.9.5 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-24281
- https://github.com/apache/zookeeper/commit/66c4efecdda1302d9cfb3af9eedb122b74452bf3
- https://github.com/apache/zookeeper
- https://issues.apache.org/jira/browse/ZOOKEEPER-4986
- https://lists.apache.org/thread/088ddsbrzhd5lxzbqf5n24yg0mwh9jt2
- http://www.openwall.com/lists/oss-security/2026/03/07/4
- https://security-tracker.debian.org/tracker/CVE-2026-24281
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.