Important: Red Hat Security Advisory: Submariner v0.24 security fixes and container updates

Submariner v0.24 General Availability release images, which provide enhancements, security fixes, and updated 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...

CVE-2026-66786

A flaw was found in submariner. In cert-auth mode, the connection configuration is built using free-form strings from the Custom Resource Definition CRD without proper validation. A malicious cluster can exploit this by publishing a CableName that includes newlines and ipsec.conf directives. This...

EUVD-2026-70247

A flaw was found in submariner. In cert-auth mode, the connection configuration is built using free-form strings from the Custom Resource Definition CRD without proper validation. A malicious cluster can exploit this by publishing a CableName that includes newlines and ipsec.conf directives. This...

CVE-2026-66786 Submariner: submariner: ipsec.conf stanza injection via remote-supplied cablename and subnets

A flaw was found in submariner. In cert-auth mode, the connection configuration is built using free-form strings from the Custom Resource Definition CRD without proper validation. A malicious cluster can exploit this by publishing a CableName that includes newlines and ipsec.conf directives. This...

CVE-2026-66786

Submariner 's certificate-based IPsec authentication mode (IPSecCertAuthMode: true) is vulnerable to ipsec.conf stanza injection via remote-supplied CableName and subnets fields in the Custom Resource Definition. Because these free-form strings are incorporated into the connection configuration w...

CVE-2026-66786

A flaw was found in submariner. In cert-auth mode, the connection configuration is built using free-form strings from the Custom Resource Definition CRD without proper validation. A malicious cluster can exploit this by publishing a CableName that includes newlines and ipsec.conf directives. This...

CVE-2026-66785

A flaw was found in Submariner. This vulnerability allows a malicious cluster spoke to redirect network traffic from other connected clusters peer clusters by publishing a specially crafted network endpoint. The system fails to properly validate the network subnets provided by the malicious...

CVE-2026-66785 Submariner: ipsec psk secrets file created with default world-readable permissions

A flaw was found in Submariner. This vulnerability allows a malicious cluster spoke to redirect network traffic from other connected clusters peer clusters by publishing a specially crafted network endpoint. The system fails to properly validate the network subnets provided by the malicious...

CVE-2026-66785

Submariner is vulnerable to a network subnet validation flaw that allows a malicious connected cluster (spoke) to publish a specially crafted network endpoint declaring arbitrary network ranges . Peer clusters then reroute all traffic destined for those ranges through the attacker's tunnel, poten...

EUVD-2026-63572

A flaw was found in Submariner. This vulnerability allows a malicious cluster spoke to redirect network traffic from other connected clusters peer clusters by publishing a specially crafted network endpoint. The system fails to properly validate the network subnets provided by the malicious...

CVE-2026-66785 Submariner: ipsec psk secrets file created with default world-readable permissions

A flaw was found in Submariner. This vulnerability allows a malicious cluster spoke to redirect network traffic from other connected clusters peer clusters by publishing a specially crafted network endpoint. The system fails to properly validate the network subnets provided by the malicious...

CVE-2026-66785

A flaw was found in Submariner. This vulnerability allows a malicious cluster spoke to redirect network traffic from other connected clusters peer clusters by publishing a specially crafted network endpoint. The system fails to properly validate the network subnets provided by the malicious...

PT-2026-79098

Name of the Vulnerable Software and Affected Versions Submariner affected versions not specified Description A flaw allows a malicious spoke cluster to redirect network traffic from connected peer clusters by publishing a specially crafted network endpoint. The system does not properly validate...

CVE-2026-66780

A flaw was found in the submariner-operator component. The submariner-k8s-broker-cluster Role, which is assigned to joined clusters, possesses excessive permissions. This allows a compromised cluster to alter network configurations, specifically by overwriting other clusters' endpoint information...

EUVD-2026-61078

A flaw was found in the submariner-operator component. The submariner-k8s-broker-cluster Role, which is assigned to joined clusters, possesses excessive permissions. This allows a compromised cluster to alter network configurations, specifically by overwriting other clusters' endpoint information...

CVE-2026-66780 Submariner-operator: broker serviceaccount secret (token + ca) logged in full at trace verbosity

A flaw was found in the submariner-operator component. The submariner-k8s-broker-cluster Role, which is assigned to joined clusters, possesses excessive permissions. This allows a compromised cluster to alter network configurations, specifically by overwriting other clusters' endpoint information...

CVE-2026-66780 Submariner-operator: broker serviceaccount secret (token + ca) logged in full at trace verbosity

A flaw was found in the submariner-operator component. The submariner-k8s-broker-cluster Role, which is assigned to joined clusters, possesses excessive permissions. This allows a compromised cluster to alter network configurations, specifically by overwriting other clusters' endpoint information...

CVE-2026-66780

Submariner-operator contains a flaw where the submariner-k8s-broker-cluster Role, assigned to joined clusters, holds excessive permissions. A compromised cluster can overwrite other clusters' endpoint information, redirecting inter-cluster tunnel traffic and enabling a Man-in-the-Middle (MITM) at...

CVE-2026-66781

A flaw was found in the Submariner operator. The Submariner Custom Resource CR, used for configuring network connectivity, stores the IPsec pre-shared key PSK in an unencrypted format. This key, which is critical for securing communication between Kubernetes clusters, can be accessed by...

CVE-2026-66783

A flaw was found in the submariner-operator component of Red Hat Advanced Cluster Management for Kubernetes. This vulnerability allows a cluster administrator, or any user with permissions to modify the Submariner Custom Resource CR, to specify an unvalidated image path. This lack of validation...