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Fencer Intel
high 7.5

CVE-2018-11765 json

Improper Authentication in Apache Hadoop

published 6y ago modified 4mo ago also GHSA-rhh9-cm65-3w54 , EUVD-2021-0868

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.2%
EPSS 5.2% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

In Apache Hadoop versions 3.0.0-alpha2 to 3.0.0, 2.9.0 to 2.9.2, 2.8.0 to 2.8.5, any users can access some servlets without authentication when Kerberos authentication is enabled and SPNEGO through HTTP is not enabled.

Patch / fix

  • maven org.apache.hadoop:hadoop-main 2.8.6, 2.9.3, 3.0.1

Is CVE-2018-11765 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2018-11765 updated cvss 6.5

hadoop: Potential information disclosure in Hadoop Web interfaces

  • Red Hat JBoss Data Grid 7 hadoop-core hadoop-core Red Hat JBoss Data Virtualization 6 hadoop-core hadoop-core Red Hat JBoss Fuse 6 hadoop-core hadoop-core
    affected: workaround, no fix planned “Users should upgrade to Apache Hadoop 2.10.0, 3.0.1 or upper. If it is not possible and affected version of Apache Hadoop is used, SPNEGO through HTTP should be enabled.”
  • Red Hat Fuse 7 hadoop-core hadoop-core Red Hat OpenShift Container Platform 4 openshift4/ose-metering-hadoop
    not affected: vulnerable code not present “Users should upgrade to Apache Hadoop 2.10.0, 3.0.1 or upper. If it is not possible and affected version of Apache Hadoop is used, SPNEGO through HTTP should be enabled.”

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

5.21% chance of exploitation in the next 30 days, higher than 92% 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:H/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem package affected fixed in
maven org.apache.hadoop:hadoop-main
>=3.0.0-alpha2, <3.0.1
>=2.9.0, <2.9.3
>=2.8.0, <2.8.6
3.0.1
2.9.3
2.8.6

Affected products

  • n/a Apache Hadoop

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.