RHSA-2025:8691 - Security Advisory

Topic

Submariner 0.20 packages that fix various bugs and add various enhancements that are now available for Red Hat Advanced Cluster Management for Kubernetes version 2.13

Description

Submariner enables direct networking between pods and services on different Kubernetes clusters that are either on-premises or in the cloud.

For more information about Submariner, see the Submariner open source community website at: https://submariner.io/.

This advisory contains bug fixes and enhancements to the Submariner container images.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE links in the References section.

Security fix(es):

• net/http: Request smuggling due to acceptance of invalid chunked data in net/http (CVE-2025-22871)
• golang-jwt/jwt: jwt-go allows excessive memory allocation during header parsing (CVE-2025-30204)

Solution

To learn more about Submariner, see https://docs.redhat.com/en/documentation/red_hat_advanced_cluster_management_for_kubernetes/2.13/html/networking/networking#submariner.

Affected Products

• Red Hat Advanced Cluster Management for Kubernetes 2 for RHEL 9 x86_64

Fixes

• BZ - 2354195 - CVE-2025-30204 golang-jwt/jwt: jwt-go allows excessive memory allocation during header parsing
• BZ - 2358493 - CVE-2025-22871 net/http: Request smuggling due to acceptance of invalid chunked data in net/http
• ACM-20580 - Build Submariner 0.20.1 for ACM 2.13
• HYPBLD-664 - Release Submariner 0.20.1 for ACM 2.13

CVEs

• CVE-2024-8176
• CVE-2024-12133
• CVE-2024-12243
• CVE-2025-0938
• CVE-2025-22871
• CVE-2025-24528
• CVE-2025-30204

References

• https://access.redhat.com/security/updates/classification/#important