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Fencer Intel
high 7.5

CVE-2018-8012 json

Missing Authorization in Apache ZooKeeper

published 2018-05-21 8 y ago modified 2026-06-17 4 mo ago also GHSA-ccqf-c5hq-77mp , EUVD-2022-3562

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
8.4%
EPSS 8.4% chance of exploitation in 30 days, percentile 95%
public exploits
0
none known

Summary

No authentication/authorization is enforced when a server attempts to join a quorum in Apache ZooKeeper before 3.4.10, and 3.5.0-alpha through 3.5.3-beta. As a result an arbitrary end point could join the cluster and begin propagating counterfeit changes to the leader.

Patch / fix

  • maven org.apache.zookeeper:zookeeper 3.4.10, 3.5.4-beta
  • apache zookeeper 3.4.10
  • oracle goldengate_stream_analytics 19.1.0.0.1
  • zookeeper Debian 14, Debian 13, Debian 12 3.4.10-2

debian advisories DEBIAN-CVE-2018-8012

  • zookeeper Ubuntu Pro 16.04 LTS 3.4.8-1ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2018-8012

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-8012 updated cvss 7.4

zookeeper: No authentication or authorization is enforced when a server joins a quorum

  • Red Hat JBoss A-MQ 6 zookeeper Red Hat JBoss Fuse 6 zookeeper
    affected: no fix planned “Will not fix”
  • Red Hat BPM Suite 6 zookeeper Red Hat Fuse 7 zookeeper Red Hat JBoss BRMS 6 zookeeper Red Hat JBoss Data Virtualization 6 zookeeper Red Hat JBoss Fuse Integration Service 2 zookeeper Red Hat JBoss Fuse Service Works 6 zookeeper
    +2 more products
    Red Hat OpenShift Application Runtimes zookeeper Red Hat streams for Apache Kafka zookeeper
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

8.42% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
maven org.apache.zookeeper:zookeeper
<3.4.10
>=3.5.0-alpha, <3.5.4-beta
3.4.10
3.5.4-beta

Affected products

  • Apache Software Foundation Apache ZooKeeper

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.