Red Hat Security Advisory: OpenShift Container Platform 4.18.37 bug fix and security update
Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the container images for Red Hat OpenShift Container Platform 4.18.37. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHSA-2026:6552 Space precludes documenting all of the container images in this advisory. See the following Release Notes documentation, which will be updated shortly for this release, for details about these changes: https://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/
AI Analysis
Technical Summary
A vulnerability (CVE-2025-61726) was identified in the Go standard library net/url package used by Red Hat OpenShift Container Platform. The flaw involves the lack of limits on the number of unique query parameters parsed by the net/http.Request.ParseForm method. An attacker can exploit this by sending a specially crafted HTTP request with a massive number of unique query parameters, causing excessive memory consumption and leading to denial of service (DoS) through application crash or unresponsiveness. The vulnerability impacts OpenShift Container Platform versions >=4.18.0 and <4.18.37. Red Hat has issued updated container images and RPM packages in OpenShift Container Platform 4.18.37 to remediate this issue.
Potential Impact
Successful exploitation results in denial of service due to resource exhaustion (memory consumption) in applications parsing URL-encoded forms with the vulnerable Go net/url package. There is no impact on confidentiality or integrity. The severity is rated as important/high due to the potential for application unavailability.
Mitigation Recommendations
Red Hat has released OpenShift Container Platform 4.18.37 with updated container images and RPM packages that fix this vulnerability. Users should upgrade to version 4.18.37 or later as soon as possible to mitigate the risk. No practical workaround or mitigation other than upgrading has been identified by Red Hat.
Red Hat Security Advisory: OpenShift Container Platform 4.18.37 bug fix and security update
Description
Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. This advisory contains the container images for Red Hat OpenShift Container Platform 4.18.37. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHSA-2026:6552 Space precludes documenting all of the container images in this advisory. See the following Release Notes documentation, which will be updated shortly for this release, for details about these changes: https://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html/release_notes/
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
A vulnerability (CVE-2025-61726) was identified in the Go standard library net/url package used by Red Hat OpenShift Container Platform. The flaw involves the lack of limits on the number of unique query parameters parsed by the net/http.Request.ParseForm method. An attacker can exploit this by sending a specially crafted HTTP request with a massive number of unique query parameters, causing excessive memory consumption and leading to denial of service (DoS) through application crash or unresponsiveness. The vulnerability impacts OpenShift Container Platform versions >=4.18.0 and <4.18.37. Red Hat has issued updated container images and RPM packages in OpenShift Container Platform 4.18.37 to remediate this issue.
Potential Impact
Successful exploitation results in denial of service due to resource exhaustion (memory consumption) in applications parsing URL-encoded forms with the vulnerable Go net/url package. There is no impact on confidentiality or integrity. The severity is rated as important/high due to the potential for application unavailability.
Mitigation Recommendations
Red Hat has released OpenShift Container Platform 4.18.37 with updated container images and RPM packages that fix this vulnerability. Users should upgrade to version 4.18.37 or later as soon as possible to mitigate the risk. No practical workaround or mitigation other than upgrading has been identified by Red Hat.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:6554
- Cve Count
- 2
- Additional Cves
- ["CVE-2025-61728"]
- State
- PUBLISHED
Threat ID: 6a160964e29bf47b5062916e
Added to database: 05/26/2026, 20:58:12 UTC
Last enriched: 08/14/2026, 19:58:16 UTC
Last updated: 09/10/2026, 22:04:04 UTC
Views: 76
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