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Fencer Vulns
high 8.8

CVE-2018-11764 json

Authentication bypass in Apache Hadoop

published 2020-10-21 6 y ago modified 2026-09-10 1 mo ago also GHSA-4fh8-pm7g-pmxq , EUVD-2022-0810

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.4%
EPSS 2.4% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known

Summary

Web endpoint authentication check is broken in Apache Hadoop 3.0.0-alpha4, 3.0.0-beta1, and 3.0.0. Authenticated users may impersonate any user even if no proxy user is configured.

Patch / fix

  • maven org.apache.hadoop:hadoop-main 3.0.1

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-2018-11764 updated cvss 8.8

hadoop: privilege escalation in web endpoint

  • Red Hat JBoss Data Virtualization 6 hadoop-core hadoop-core
    affected: no fix planned “Out of support scope”
  • Red Hat Fuse 7 hadoop hadoop Red Hat Integration Camel K 1 hadoop hadoop Red Hat JBoss Data Grid 7 hadoop-core hadoop-core Red Hat JBoss Fuse 6 hadoop-core hadoop-core Red Hat OpenShift Container Platform 4 openshift4/ose-metering-hadoop
    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

2.39% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 9.0 AV:N/AC:L/Au:S/C:C/I:C/A:C
GitHub 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
maven org.apache.hadoop:hadoop-main
>=3.0.0-alpha4, <3.0.1
>=3.0.0-beta1, <3.0.1
>=3.0.0, <3.0.1
3.0.1

Affected products

  • n/a Apache Hadoop

Classification

Weakness
  • CWE-306 Missing Authentication for Critical Functionality

References

Sources

Fencer Vulns 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.