Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2026-1784

External Control of System or Configuration Setting

Published: Jun 02, 2026 | Modified: Jun 25, 2026
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
RedHat/V2
RedHat/V3
8.8 IMPORTANT
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Ubuntu
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-1784
CWEhttps://cwe.mitre.org/data/definitions/15.html

The Route OpenShift resource allows to define routes to make pods reachable at a subdomain through HAProxy. It was found that the checks performed on the spec.path YAML stanza in a Route document was insufficient and could allow a controlled injection of the HAProxy configuration.

Weakness

One or more system settings or configuration elements can be externally controlled by a user.

Affected Software

NameVendorStart VersionEnd Version
Openshift_container_platformRedhat4.0 (including)4.0 (including)
Red Hat OpenShift Container Platform 4.13RedHatopenshift4/ose-cluster-ingress-operator:1781123014*
Red Hat OpenShift Container Platform 4.16RedHatopenshift4/ose-cluster-ingress-rhel9-operator:1780962617*
Red Hat OpenShift Container Platform 4.18RedHatopenshift4/ose-cluster-ingress-rhel9-operator:1780988280*
Red Hat OpenShift Container Platform 4.19RedHatopenshift4/ose-cluster-ingress-rhel9-operator:1780043338*
Red Hat OpenShift Container Platform 4.20RedHatopenshift4/ose-cluster-ingress-rhel9-operator:1780990977*
Red Hat OpenShift Container Platform 4.21RedHatopenshift4/ose-cluster-ingress-rhel9-operator:1780444348*

Potential Mitigations

  • Compartmentalize the system to have “safe” areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
  • Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.

References

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