Red Hat Security Advisory: OpenShift Container Platform 4.18.38 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 4.18.38. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHBA-2026:8422 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
CVE-2025-61728 is a denial of service vulnerability in the Go standard library archive/zip package. The vulnerability arises from a super-linear file name indexing algorithm used when opening files in a zip archive. A maliciously crafted zip archive with a specific arrangement of file names can cause excessive CPU and memory consumption, leading to application unresponsiveness or crashes. This affects Go applications processing such archives, including those running on Red Hat OpenShift Container Platform versions before 4.18.38. The vulnerability is rated as moderate severity by Red Hat but has a high impact on availability due to resource exhaustion. Red Hat has released OpenShift Container Platform 4.18.38 with updated container images and packages that fix this issue.
Potential Impact
The vulnerability can cause Go applications using the archive/zip package to consume excessive CPU and memory resources when processing crafted zip archives. This results in denial of service by making the application unresponsive or causing it to crash. There is no impact on confidentiality or integrity. The issue affects Red Hat OpenShift Container Platform deployments running affected versions prior to 4.18.38.
Mitigation Recommendations
Red Hat has released OpenShift Container Platform 4.18.38 which includes fixes for this vulnerability. Users are advised to upgrade to version 4.18.38 or later to remediate the issue. Additionally, implementing timeouts in archive/zip processing logic can help mitigate excessive resource consumption by aborting operations that exceed expected durations. Follow Red Hat's official upgrade instructions to fully apply the update.
Red Hat Security Advisory: OpenShift Container Platform 4.18.38 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 4.18.38. See the following advisory for the RPM packages for this release: https://access.redhat.com/errata/RHBA-2026:8422 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
CVE-2025-61728 is a denial of service vulnerability in the Go standard library archive/zip package. The vulnerability arises from a super-linear file name indexing algorithm used when opening files in a zip archive. A maliciously crafted zip archive with a specific arrangement of file names can cause excessive CPU and memory consumption, leading to application unresponsiveness or crashes. This affects Go applications processing such archives, including those running on Red Hat OpenShift Container Platform versions before 4.18.38. The vulnerability is rated as moderate severity by Red Hat but has a high impact on availability due to resource exhaustion. Red Hat has released OpenShift Container Platform 4.18.38 with updated container images and packages that fix this issue.
Potential Impact
The vulnerability can cause Go applications using the archive/zip package to consume excessive CPU and memory resources when processing crafted zip archives. This results in denial of service by making the application unresponsive or causing it to crash. There is no impact on confidentiality or integrity. The issue affects Red Hat OpenShift Container Platform deployments running affected versions prior to 4.18.38.
Mitigation Recommendations
Red Hat has released OpenShift Container Platform 4.18.38 which includes fixes for this vulnerability. Users are advised to upgrade to version 4.18.38 or later to remediate the issue. Additionally, implementing timeouts in archive/zip processing logic can help mitigate excessive resource consumption by aborting operations that exceed expected durations. Follow Red Hat's official upgrade instructions to fully apply the update.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:8448
- Cve Count
- 2
- Additional Cves
- ["CVE-2025-61732"]
- State
- PUBLISHED
Threat ID: 6a160976e29bf47b50640c22
Added to database: 05/26/2026, 20:58:30 UTC
Last enriched: 08/14/2026, 19:25:28 UTC
Last updated: 09/14/2026, 22:01:30 UTC
Views: 95
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