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Fencer Vulns
high 8.8

CVE-2020-9492 json

Improper Privilege Management in Apache Hadoop

published 2021-01-26 5 y ago modified 2026-09-08 2 mo ago also BIT-solr-2020-9492 , EUVD-2022-0976 , GHSA-f8vc-wfc8-hxqh

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.5%
EPSS 4.5% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

In Apache Hadoop 3.2.0 to 3.2.1, 3.0.0-alpha1 to 3.1.3, and 2.0.0-alpha to 2.10.0, WebHDFS client might send SPNEGO authorization header to remote URL without proper verification.

Patch / fix

  • maven org.apache.hadoop:hadoop-common 2.10.1, 3.1.4, 3.2.2
  • bitnami solr 8.6.1, 8.6.3

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-2020-9492 updated cvss 8.8

hadoop: WebHDFS client might send SPNEGO authorization header

  • Red Hat Fuse 7 hadoop-hdfs-client
    affected: no fix available “Fix deferred”
  • Red Hat Integration Camel Quarkus 1 hadoop-hdfs-client
    affected: no fix available
  • Red Hat JBoss Fuse 6 hadoop-hdfs-client
    affected: no fix planned “Out of support scope”
  • Red Hat OpenShift Container Platform 4 openshift4/ose-metering-hive, openshift4/ose-metering-hadoop
    affected: no fix planned “Will not fix”
  • Red Hat RHAF Camel-K 1.8
    fixed: vendor fix RHSA-2022:6407
  • Red Hat RHINT Camel-Q 2.7
    fixed: vendor fix RHSA-2022:5606
  • Red Hat JBoss Enterprise Application Platform 7 hadoop-hdfs-client
    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

4.49% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
GitHub 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P
OSV 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-common
>=3.2.0, <3.2.2
>=3.0.0, <3.1.4
>=2.0.0, <2.10.1
3.2.2
3.1.4
2.10.1
bitnami solr
>=8.6.0, <8.6.1
>=8.6.2, <8.6.3
8.6.1
8.6.3

Affected products

  • n/a Apache Hadoop

Classification

Weakness
  • CWE-269 Improper Privilege Management
  • CWE-863 Incorrect Authorization

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.