No exploitation reportedFix available

CVE-2018-8012

Q: Is CVE-2018-8012 actively exploited?

Active exploitation of CVE-2018-8012 has not been confirmed. Its EPSS score was 8.5% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2018-8012?

CVE-2018-8012 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

No exploitation reported by the sources we read.

Published2018-05-21
Fixed in3.5.4-beta · 3.4.10
WeaknessCWE-862

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC

2018-05-2119:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-8012?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-8012?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

OSV · NVD

Apache zookeeper

Branch	Affected	Fixed in	Source
3.5	≥ 3.5.0-alpha, < 3.5.4-beta	3.5.4-beta	OSV
3.4	< 3.4.10	3.4.10	NVD · OSV
3.5	≥ 3.5.0, ≤ 3.5.3	no fix published	NVD
3.5	= 3.5.0	no fix published	NVD
3.5	= 3.5.3	no fix published	NVD

Debian debian linux

Branch	Affected	Fixed in	Source
8.0	= 8.0	no fix published	NVD
9.0	= 9.0	no fix published	NVD

Oracle goldengate stream analytics

Branch	Affected	Fixed in	Source
19.1	< 19.1.0.0.1	19.1.0.0.1	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Apache zookeeper to 3.5.4-beta · 3.4.10

Advisories and patches

www.oracle.comPatch

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.17.5read 2026-10-23
NVDCVSS 2.05read 2026-10-23
NVDweakness (CWE)CWE-862read 2026-10-23
FIRST EPSSEPSS score8.5 %2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Published: 2018-05-21
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2018-8012?

Is CVE-2018-8012 actively exploited?

Active exploitation of CVE-2018-8012 has not been confirmed. Its EPSS score was 8.5% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-8012?

CVE-2018-8012 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

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