CVE-2018-11765

Name: CVE-2018-11765
Creator: NVD / NIST
Published: 2020-09-30T18:15:15.477+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 5.21%

Last modified Jun 17, 2026

CVE-2018-11765 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 5.21% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

5.21%

91.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Apache	Hadoop	>= 2.8.0, <= 2.8.5
Apache	Hadoop	>= 2.9.0, <= 2.9.2
Apache	Hadoop	3.0.0

References

Timeline

Published: Sep 30, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-11765?

How severe is CVE-2018-11765?

CVE-2018-11765 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 5.21% probability of exploitation in the next 30 days.

How do I fix CVE-2018-11765?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-11765?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST