Skip to content
Fencer Vulns
high 8.1

CVE-2026-1531 json

Foreman-kubevirt: foreman_kubevirt: man-in-the-middle due to insecure default ssl verification

published 2026-02-02 9 mo ago modified 2026-07-15 3 mo ago also GHSA-2qxw-7fmx-gqfm , EUVD-2026-5117

cvss
8.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 21%
public exploits
0
none known

Summary

A flaw was found in foreman_kubevirt. When configuring the connection to OpenShift, the system disables SSL verification if a Certificate Authority (CA) certificate is not explicitly set. This insecure default allows a remote attacker, capable of intercepting network traffic between Satellite and OpenShift, to perform a Man-in-the-Middle (MITM) attack. Such an attack could lead to the disclosure or alteration of sensitive information.

Patch / fix

  • rubygems foreman_kubevirt 0.4.3
  • Red Hat Red Hat Satellite 6.16 for RHEL 8 0:0.2.0-2.el8sat
  • Red Hat Red Hat Satellite 6.16 for RHEL 9 0:0.2.0-2.el9sat
  • Red Hat Red Hat Satellite 6.17 for RHEL 9 0:0.0.3-4.el9sat, 0:0.1.23-0.3.el9pc, 0:0.4.3-1.el9sat, 0:0.13.0-1.el9sat, 0:1.2.0-0.1.el9pc, 0:1.5.1-1.el9sat, 0:2.22.3-1.el9pc, 0:3.14.0.14-1.el9sat, 0:3.27.10-2.el9pc, 0:4.2.28-0.1.el9pc, 0:4.16.0.14-1.el9sat, 0:6.17.7-1.el9sat
  • Red Hat Red Hat Satellite 6.18 for RHEL 9 0:0.4.3-1.el9sat
  • foreman satellite utils 6.16, satellite capsule 6.16, satellite 6.16 3.12.0.14-1.el8sat
  • foreman satellite utils 6.16, satellite capsule 6.16, satellite 6.16 3.12.0.14-1.el9sat
  • foreman-cli satellite utils 6.16, satellite 6.16 3.12.0.14-1.el8sat
  • foreman-cli satellite utils 6.16, satellite 6.16 3.12.0.14-1.el9sat
  • foreman-ec2 satellite 6.16 3.12.0.14-1.el8sat
  • foreman-ec2 satellite 6.16 3.12.0.14-1.el9sat
  • foreman-pcp satellite capsule 6.16, satellite 6.16 3.12.0.14-1.el8sat
  • foreman-pcp satellite capsule 6.16, satellite 6.16 3.12.0.14-1.el9sat

red hat advisories RHSA-2026:5971RHSA-2026:5968RHSA-2026:5970

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-2026-1531 updated cvss 8.1

foreman-kubevirt: foreman_kubevirt: Man-in-the-Middle due to insecure default SSL verification

  • Red Hat Satellite 6 rubygem-foreman_kubevirt
    affected: workaround, no fix available
  • Red Hat Satellite 6.16 for RHEL 8 rubygem-foreman_kubevirt 0.2.0-2.el8sat Red Hat Satellite 6.16 for RHEL 9 rubygem-foreman_kubevirt 0.2.0-2.el9sat
    fixed: vendor fix RHSA-2026:5971
  • Red Hat Satellite 6.17 for RHEL 9 libcomps 0.1.23-0.3.el9pc, satellite 6.17.7-1.el9sat, foreman 3.14.0.14-1.el9sat, python-brotli 1.2.0-0.1.el9pc, satellite-cli 6.17.7-1.el9sat, foreman-cli 3.14.0.14-1.el9sat, +29 more
    fixed: vendor fix RHSA-2026:5970
  • Red Hat Satellite 6.18 for RHEL 9 rubygem-foreman_kubevirt 0.4.3-1.el9sat
    fixed: vendor fix RHSA-2026:5968
  • Red Hat Satellite 6.16 for RHEL 8 libcomps 0.1.23-0.1.el8pc, satellite 6.16.7-1.el8sat, foreman 3.12.0.14-1.el8sat, python-brotli 1.2.0-0.1.el8pc, satellite-cli 6.16.7-1.el8sat, foreman-cli 3.12.0.14-1.el8sat, +26 more Red Hat Satellite 6.16 for RHEL 9 libcomps 0.1.23-0.1.el9pc, satellite 6.16.7-1.el9sat, foreman 3.12.0.14-1.el9sat, python-brotli 1.2.0-0.1.el9pc, satellite-cli 6.16.7-1.el9sat, foreman-cli 3.12.0.14-1.el9sat, +26 more Red Hat Satellite 6.18 for RHEL 9 satellite 6.18.4-2.el9sat, foreman 3.16.0.12-1.el9sat, satellite-cli 6.18.4-2.el9sat, foreman-cli 3.16.0.12-1.el9sat, foreman-ec2 3.16.0.12-1.el9sat, foreman-pcp 3.16.0.12-1.el9sat, +22 more
    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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
9 mo ago

Exploit prediction

0.29% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CISA ADP 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
GitHub 3.1 8.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Affected packages

ecosystem package affected fixed in
rubygems foreman_kubevirt
<0.4.3
0.4.3

Affected products

  • Red Hat Red Hat Satellite 6.16 for RHEL 8
  • Red Hat Red Hat Satellite 6.16 for RHEL 9
  • Red Hat Red Hat Satellite 6.17 for RHEL 9
  • Red Hat Red Hat Satellite 6.18 for RHEL 9
  • Red Hat Red Hat Satellite 6

Classification

Weakness
  • CWE-295 Improper Certificate Validation

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.