CVE-2026-1784
CVE-2026-1784 is a high-severity vulnerability in Redhat Openshift Container Platform with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-15.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- EPSS exploit prediction: 0% (5th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-33883
- Weakness: CWE-15
- Affected product: Redhat Openshift Container Platform
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2026-1784?
- 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.
- How severe is CVE-2026-1784?
- CVE-2026-1784 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-1784 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-1784?
- CVE-2026-1784 affects Redhat Openshift Container Platform. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-1784?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-1784 have an EU (EUVD) identifier?
- Yes. CVE-2026-1784 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33883.
- When was CVE-2026-1784 published?
- CVE-2026-1784 was published on 2026-06-02 and last updated on 2026-07-02.
References
- https://access.redhat.com/errata/RHSA-2026:23241
- https://access.redhat.com/errata/RHSA-2026:23246
- https://access.redhat.com/errata/RHSA-2026:25045
- https://access.redhat.com/errata/RHSA-2026:25182
- https://access.redhat.com/errata/RHSA-2026:25194
- https://access.redhat.com/errata/RHSA-2026:26543
- https://access.redhat.com/errata/RHSA-2026:28893
- https://access.redhat.com/errata/RHSA-2026:28964
- https://access.redhat.com/security/cve/CVE-2026-1784
- https://bugzilla.redhat.com/show_bug.cgi?id=2436075
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-1784.json
Affected products (1)
- cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*
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