Sign in
Deutsch English Español Polski
High

Improper Authentication in Apache Hadoop

  • Disclosed: 30.04.2021
  • Updated: 11.10.2026 11:22

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.

Affected software

Click a technology to see all vulnerabilities affecting it.

PlatformPackageVulnerable versionsFixed in
Java / Kotlin (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

References

CVSS score 7.5/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE)
CWE-287
Platform
Java / Kotlin (Maven)
Package
org.apache.hadoop:hadoop-main
Disclosed
30.04.2021
Updated
11.10.2026 11:22

Sources and licenses

OSV / GitHub Advisory Database - GHSA-rhh9-cm65-3w54 - CC BY 4.0

Vulnerability history: org.apache.hadoop:hadoop-main

All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (13) in the archive
Total entries
13
First → latest
12.2018 05.2022
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 1
  • High 9
  • Medium 3

Disclosures per year

Severity:
  1. Hadoop symlink vulnerability
    High · 7.5 CVE-2012-2945 < 1.0.4 1.0.4
  2. Authentication bypass in Apache Hadoop
    High · 8.8 CVE-2018-11764 >= 3.0.0-alpha4, < 3.0.1, >= 3.0.0-beta1, < 3.0.1, >= 3.0.0, < 3.0.1 3.0.1
  3. Improper Authentication in Apache Hadoop this entry
    High · 7.5 CVE-2018-11765 >= 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
  4. user/group information can be corrupted across storing in fsimage and reading back from fsimage
    High · 7.5 CVE-2018-11768 >= 2.2.0, < 2.8.5, >= 2.9.0, < 2.9.2, >= 3.0.0, < 3.1.1 2.8.5, 2.9.2, 3.1.1
  5. Privilege escalation vulnerability in Apache Hadoop
    High · 8.8 CVE-2018-8029 >= 2.2.0, < 2.8.4, >= 2.9.0, < 2.9.2, >= 3.0.0, < 3.1.1 2.8.4, 2.9.2, 3.1.1
  6. Improper Privilege Management in org.apache.hadoop:hadoop-main
    High · 7.4 CVE-2018-11767 >= 2.7.5, < 2.7.7, >= 2.8.3, < 2.8.5, >= 2.9.0, < 2.9.2 2.7.7, 2.8.5, 2.9.2
  7. Exposure of Sensitive Information to an Unauthorized Actor in Hadoop
    High · 7.5 CVE-2018-1296 < 2.7.6, >= 2.8.0, < 2.8.4, >= 2.9.0, < 2.9.1 2.7.6, 2.8.4, 2.9.1
  8. Path Traversal in Hadoop
    High · 8.8 CVE-2018-8009 >= 3.1.0, < 3.1.1, >= 3.0.0, < 3.0.3, >= 2.9.0, < 2.9.2, >= 2.8.0, < 2.8.5, < 2.7.7 3.1.1, 3.0.3, 2.9.2, 2.8.5, 2.7.7
  9. Arbitrary Command Execution in Hadoop
    High · 8.8 CVE-2018-11766 >= 2.7.4, < 2.7.7 2.7.7
  10. Exposure of Sensitive Information in Hadoop
    Critical · 9.8 CVE-2017-15718 >= 2.7.3, < 2.7.5 2.7.5

Know which vulnerabilities affect your application

With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.

Connect your application
DockRay newsletter

Application security in your inbox

Important vulnerabilities, actionable guidance and practical advice for your applications. Choose your technologies and follow what matters to your project.

  • A daily digest of new vulnerabilities, critical ones included.
  • Notifications about important updates.
  • Practical advice on application security and monitoring.

Leave empty to receive updates for every technology.

Privacy policy

Free to subscribe. Unsubscribe with one click in any email.