4.3

CVE-2021-4180: openstack tripleo_heat_templates

CVSS: 4.3v3.1MediumModified
AliasesGHSA-hm3x-jwwf-jpr9PYSEC-2026-753RHSA-2022:0995
Published 23-03-2022Last modified 03-08-2024

Vulnerability summary

CVE-2021-4180 is a medium (CVSS 4.3) vulnerability in openstack tripleo_heat_templates. EPSS estimates a 0.77% chance of exploitation in the next 30 days, higher than 54.7% of scored vulnerabilities.

Overall risk
17/100
0100
Low · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v3.1 (NVD)
EPSS score
0.77%
0%100%
Low · -0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 23-03-2022
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

An information exposure flaw in openstack-tripleo-heat-templates allows an external user to discover the internal IP or hostname. An attacker could exploit this by checking the www_authenticate_uri parameter (which is visible to all end users) in configuration files. This would give sensitive information which may aid in additional system exploitation. This flaw affects openstack-tripleo-heat-templates versions prior to 11.6.1.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.77%

Chance of exploitation in the next 30 days

Percentile

55%

Versus all other CVEs

30-day change

-0.02 pp

From 0.79% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.77%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Redhat2 products
  • openstack13 | 16.1 | 16.2
  • openstack-tripleo-heat-templates< 0:11.3.2-1.20221013153262.el8ost | < 0:11.6.1-2.20220116004912.el8ost
Openstack1 product
PyPI1 product
  • tripleo-heat-templates< 11.6.1
Ubuntu1 product
  • tripleo-heat-templatesAll versions (No fix recorded)

4 vendors · 5 products

References

94 links
Show all 94 references