CVE-2018-16879

Name: CVE-2018-16879
Creator: NVD / NIST
Published: 2019-01-03T14:29:00.197+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.11%

Last modified Jun 17, 2026

CVE-2018-16879 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Ansible Tower before version 3.3.3 does not set a secure channel as it is using the default insecure configuration channel settings for messaging celery workers from RabbitMQ. This could lead in data leak of sensitive information such as passwords as well as denial of service attacks by deleting projects or inventory files.. EPSS estimates a 1.11% chance of exploitation in the next 30 days.

Description

Ansible Tower before version 3.3.3 does not set a secure channel as it is using the default insecure configuration channel settings for messaging celery workers from RabbitMQ. This could lead in data leak of sensitive information such as passwords as well as denial of service attacks by deleting projects or inventory files.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.11%

61.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Redhat	Ansible Tower	< 3.3.3

References

http://www.securityfocus.com/bid/106310Broken Link, Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16879Issue Tracking, Vendor Advisory
http://www.securityfocus.com/bid/106310Broken Link, Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16879Issue Tracking, Vendor Advisory

Timeline

Published: Jan 3, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-16879?

How severe is CVE-2018-16879?

CVE-2018-16879 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.11% probability of exploitation in the next 30 days.

How do I fix CVE-2018-16879?

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-2018-16879?

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

Scan your code now

Source: NVD / NIST