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Full vulnerability report · 2026
CVE-2026-66781High confidence

Submariner-operator: pprof debug endpoint enabled by default on 0.0.0.0:8082 without authentication

Red Hat · Red Hat Advanced Cluster Management for Kubernetes 2.11

Official source article: Red Hat RHSA-2026:60386 ↗. Check the applicable product and release in the original source.

5.4MediumCVSS 3.1
Recommended action
Scheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityMediumOperational priority:Medium, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 0.39% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict local access and enforce least privilege on affected hosts.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Red Hat Red Hat Advanced Cluster Management for Kubernetes 2.11 and falls inside the recorded affected range.
  2. Verify the installed build against the product-specific fixed version after deployment.
  3. Validate exposure, authentication requirements and compensating controls in the actual environment.
  4. Reopen this reassessment when CVSS, KEV, EPSS, exploit evidence or remediation changes.
Mitigation target: As exposure requiresRemediation target: Within 365 days

This automated reassessment organises public evidence. It does not know asset exposure, business impact or control effectiveness and does not replace CVSS or a human risk decision.

Direct vendor intelligence

Authoritative vendor CSAF and VEX advisories

Structured product status and remediation from the issuing vendor. Product-state explanations are always visible; large lists can be searched or downloaded.

1 current
CVE-2026-66781 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitysubmariner-operator: pprof debug endpoint enabled by default on 0.0.0.0:8082 without authentication
1 known affected

The vendor explicitly identifies these products as affected by this CVE.

  • rhacm2/submariner-operator-bundle as a component of Red Hat Advanced Cluster Management for Kubernetes 2
Summary
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 unauthorized parties. Such access enables an attacker to passively decrypt network traffic flowing between any two clusters in the mesh, resulting in sensitive information disclosure.
Remediation
Before you apply this update, make sure all previously released errata that are relevant to your system are applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
Optional official sources

National CERT insights
?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

Choose official national sources for this report. Each advisory shows its original language. Your selection is remembered on this device and included in shared links.

Official European source

ENISA European Vulnerability Database

Official EUVD identifiers, advisory evidence and known-exploited context. Missing fields are not treated as evidence of low risk.

1 current
ENISA EUVD identifier

EUVD-2026-61065

No EUVD known-exploited evidence

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 unauthorized parties. Such access enables an attacker to passively decrypt network traffic flowing between any two clusters in the mesh, resulting in sensitive information disclosure.

EUVD state
Present in the current official mapping
Known exploitation
Not present in the current ENISA EUVD known-exploited dataset. This is not proof of no exploitation.
ENISA score
5.4 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionScheduled

Medium technical severity with no CISA KEV confirmation; remediate through the normal risk-based patch cycle unless local exposure raises the priority.

Patch available
01

What, why and how

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 unauthorized parties. Such access enables an attacker to passively decrypt network traffic flowing between any two clusters in the mesh, resulting in sensitive information disclosure.

What

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 unauthorized parties. Such access enables an attacker to passively decrypt network traffic flowing between any two clusters in the mesh, resulting in sensitive information disclosure.

Why

The product provides an Applications Programming Interface (API) or similar interface for interaction with external actors, but the interface includes a dangerous method or function that is not properly restricted.

How

An attacker operating through an adjacent network may attempt exploitation without authentication or user interaction. If successful, the issue may obtain information outside the intended access boundary.

What

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 unauthorized parties. Such access enables an attacker to passively decrypt network traffic flowing between any two clusters in the mesh, resulting in sensitive information disclosure.

Why

The product provides an Applications Programming Interface (API) or similar interface for interaction with external actors, but the interface includes a dangerous method or function that is not properly restricted.

How

An attacker operating through an adjacent network may attempt exploitation without authentication or user interaction. If successful, the issue may obtain information outside the intended access boundary.

02

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material
?Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.
None recorded

No exploit-tagged reference or CISA SSVC proof-of-concept state is currently recorded. Research may still exist outside the structured feeds.

Likely attack path
an adjacent network → Exposed Dangerous Method or Function → obtain information outside the intended access boundary
Attack surface
Adjacent
Privileges required
None: unauthenticated exploitation is possible
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Unchanged: impact remains within the vulnerable component's security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-749 ↗

CWE-749: Exposed Dangerous Method or Function. The product provides an Applications Programming Interface (API) or similar interface for interaction with external actors, but the interface includes a dangerous method or function that is not properly restricted.

CVSS vector
?CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Common Vulnerability Scoring System 3.1: the compact vector below is decoded into plain language.

AVAdjacentAttack vector: The attacker must be on an adjacent or logically close network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRNonePrivileges required: The attacker does not need an account or existing privileges.UINoneUser interaction: No action by another user is required.SUnchangedScope: The security impact remains within the vulnerable component's authority.CLowConfidentiality impact: A successful attack can cause a limited loss.INoneIntegrity impact: No direct loss is represented by this metric.ALowAvailability impact: A successful attack can cause a limited loss.
Post-exploitation / living off the land
No specific living-off-the-land technique is confirmed in the structured sources. Monitor normal administration tools for activity inconsistent with the affected service's baseline.
UnauthenticatedCWE-749
A

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2026-61065Official EUVD mapping

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 unauthorized parties. Such access enables an attacker to passively decrypt network traffic flowing between any two clusters in the mesh, resulting in sensitive information disclosure.

Official EUVD record ↗
03

Patch and workaround

Operational remediation based on structured source evidence.

Status
?Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.
Patch available
Affected
rhacm2/submariner-operator-bundle as a component of Red Hat Advanced Cluster Management for Kubernetes 2
Fixed
Action
Before you apply this update, make sure all previously released errata that are relevant to your system are applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258
Workaround
No verified workaround is recorded. Limit untrusted access and use least privilege until authoritative guidance is available.
04

Evidence and provenance

Published 18 Aug 2026 · Last source change 5 Sept 2026, 14:23 UTC · CWE-749 · Exposed Dangerous Method or Function

CVE recordCVE.org · 5.2
CVSS sourceCNA
EPSS source
?The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.
FIRST · tracked since 2026-08-23
European sourceENISA EUVD · EUVD-2026-61065
Product sourceVendor CSAF · Red Hat Product Security
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD awaiting enrichment

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates ↗
  1. Affected versionsThe structured affected or fixed version information changed.
    Before
    See the vendor and CVE records for the affected range. · Fixed: Red Hat Advanced Cluster Management for Kubernetes 2.11: 1787689013 < *; Red Hat Advanced Cluster Management for Kubernetes 2.13: 1787365971 < *; Red Hat Advanced Cluster Management for Kubernetes 2.14: 1787362756 < *; Red Hat Advanced Cluster Management for Kubernetes 2.15: 1787362733 < *; Red Hat Advanced Cluster Management for Kubernetes 2.16: 1787362694 < *; Red Hat Advanced Cluster Management for Kubernetes 2.17: 1787362658 < *
    After
    See the vendor and CVE records for the affected range. · Fixed: Red Hat Advanced Cluster Management for Kubernetes 2.11: 1787689013 < *; Red Hat Advanced Cluster Management for Kubernetes 2.13: 1787365971 < *; Red Hat Advanced Cluster Management for Kubernetes 2.14: 1787362756 < *; Red Hat Advanced Cluster Management for Kubernetes 2.15: 1787362733 < *; Red Hat Advanced Cluster Management for Kubernetes 2.16: 1787362694 < *; Red Hat Advanced Cluster Management for Kubernetes 2.17: 1787362658 < *, 1788105072 < *, 1788073481 < *
    CNA ↗
  2. CVSS scoreCVSS score changed from 6.5 (CVSS 3.1 · CNA · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N) to 5.4 (CVSS 3.1 · CNA · CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L).
    Before
    6.5 (CVSS 3.1 · CNA · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N)
    After
    5.4 (CVSS 3.1 · CNA · CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L)
    CNA ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    rhacm2/subctl-rhel9 as a component of Red Hat Advanced Cluster Management for Kubernetes 2; rhacm2/submariner-operator-bundle as a component of Red Hat Advanced Cluster Management for Kubernetes 2; rhacm2/submariner-rhel9-operator as a component of Red Hat Advanced Cluster Management for Kubernetes 2 · Fixed: registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:2fbd6ef5c48fafefc87038105bd5f0a9adda4f78d4d1cbffd900bb2db2a97c61_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.11; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:91d5a4c39064fb338dc9fa91d9f6a20395242604b5890e3dc0da420af408f3bb_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.11; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:b207a8392affeb32c71cf63e39aa40d1bf419684a6ea32da77f6d04b25f6a6fc_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.11; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:e8c301115ff09338f34f65e79b4884a24dc0c6d3dc612dd99eaab246cd466277_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.11; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:20de3cbdf6775c6bded5c61d5cb41763974fbc8589176bfa1dd4a301e44bda40_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.13; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:38c90541c3953d08e985a7ab20594236bd4f40878a701c9e90f0d6b80d4e6bf8_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.13; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:630a323bfc59dc076f32483e5339906a971c55fd7314f88fe3b2392c9644b292_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.13; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:ffd64199acb07d9350ca08f42554af0d3303b3ba9249b58e47369e191e48bcfb_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.13; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:260c10c0087a470b28353f0056d921c486d81e8bac8048172ce25a448029e411_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.14; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:26aad27dea6eec7e6bb1176a6c2a84fd513fe4e02538288bb916e71045739909_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.14; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:71aeaef24f1a5a09f5741a2a38953139f62ab5bd6cf4beb8d26521b472a3bf4d_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.14; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:a81e081ec630f462a43daea478c2db532563e5147fa23d4958fb994cb2054a0c_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.14; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:561f255ad4a3799e677f93fc4895ce1619075571b5e1059d62d6077ca6b75819_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.15; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:5a2a4779182969da2103c7e8a881be1a53d6880ab4019346b2d107db1f16fcd8_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.15; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:766c597445f38b5c5b3f80427914257cc0fd8c0836a4d59c3edbcd9adb08b4f6_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.15; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:d473436097c2cc1f0d9ed8d5e3af04bc212ddc1b90ae6941894429063d66d923_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.15; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:0c655b12c93dac187dd1ad1e605a0ddfecd80dbd62ccdc0f7c0dfd17cd66eb68_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.16; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:1590dc92d52579698718f9d1f89ed73784c936b0e47df93c5012c6c8f1c29b67_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.16; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:9e9cc1e147781ee32cc9474499bb4e6b8f9c2b23324c0a2e4f9e59aea63189e9_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.16; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:a5bca3e5cbf7eb79bb18f257f54042c51ee15641d8e4f9dcb292d188759f2587_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.16; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:32b26489841a5d4b184837e9a5c982ca11f6d1eb3d06dd08b360e5128846296e_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.17; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:b518302800ea03146951c69fae26821471365327457c9380abfe94fdcd3b7514_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.17; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:db4c5fce313340441af2bfa750064d32bf6ed896d7f3c752012f43f22e785105_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.17; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:f90cff7dcfb675370e32cc37bf3465b33a3c44a1de1127daaa8791519772ea12_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.17
    After
    rhacm2/submariner-operator-bundle as a component of Red Hat Advanced Cluster Management for Kubernetes 2 · Fixed: registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:2fbd6ef5c48fafefc87038105bd5f0a9adda4f78d4d1cbffd900bb2db2a97c61_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.11; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:91d5a4c39064fb338dc9fa91d9f6a20395242604b5890e3dc0da420af408f3bb_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.11; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:b207a8392affeb32c71cf63e39aa40d1bf419684a6ea32da77f6d04b25f6a6fc_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.11; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:e8c301115ff09338f34f65e79b4884a24dc0c6d3dc612dd99eaab246cd466277_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.11; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:20de3cbdf6775c6bded5c61d5cb41763974fbc8589176bfa1dd4a301e44bda40_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.13; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:38c90541c3953d08e985a7ab20594236bd4f40878a701c9e90f0d6b80d4e6bf8_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.13; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:630a323bfc59dc076f32483e5339906a971c55fd7314f88fe3b2392c9644b292_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.13; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:ffd64199acb07d9350ca08f42554af0d3303b3ba9249b58e47369e191e48bcfb_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.13; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:260c10c0087a470b28353f0056d921c486d81e8bac8048172ce25a448029e411_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.14; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:26aad27dea6eec7e6bb1176a6c2a84fd513fe4e02538288bb916e71045739909_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.14; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:71aeaef24f1a5a09f5741a2a38953139f62ab5bd6cf4beb8d26521b472a3bf4d_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.14; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:a81e081ec630f462a43daea478c2db532563e5147fa23d4958fb994cb2054a0c_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.14; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:561f255ad4a3799e677f93fc4895ce1619075571b5e1059d62d6077ca6b75819_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.15; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:5a2a4779182969da2103c7e8a881be1a53d6880ab4019346b2d107db1f16fcd8_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.15; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:766c597445f38b5c5b3f80427914257cc0fd8c0836a4d59c3edbcd9adb08b4f6_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.15; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:d473436097c2cc1f0d9ed8d5e3af04bc212ddc1b90ae6941894429063d66d923_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.15; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:0c655b12c93dac187dd1ad1e605a0ddfecd80dbd62ccdc0f7c0dfd17cd66eb68_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.16; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:1590dc92d52579698718f9d1f89ed73784c936b0e47df93c5012c6c8f1c29b67_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.16; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:9e9cc1e147781ee32cc9474499bb4e6b8f9c2b23324c0a2e4f9e59aea63189e9_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.16; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:a5bca3e5cbf7eb79bb18f257f54042c51ee15641d8e4f9dcb292d188759f2587_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.16; registry.redhat.io/rhacm2/subctl-rhel9@sha256:1b38ba10de27535bc6e76dac4db2e66b95e7c666f20136c15d7ac11531c541df_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.17; registry.redhat.io/rhacm2/subctl-rhel9@sha256:a8f500a30142993b8d07f4ed5b29007d89c6edc09ece1bbd72b4467e1a504c6b_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.17; registry.redhat.io/rhacm2/subctl-rhel9@sha256:d5ff003a3893554a20712a9aebda49be7a6e83594ecc5fd8bb898567734c86b8_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.17; registry.redhat.io/rhacm2/subctl-rhel9@sha256:fb5fdb72a0f7d4b8555359d506eebd63d10713a2fd24b5a3669554155f620c62_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.17; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:32b26489841a5d4b184837e9a5c982ca11f6d1eb3d06dd08b360e5128846296e_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.17; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:b518302800ea03146951c69fae26821471365327457c9380abfe94fdcd3b7514_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.17; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:db4c5fce313340441af2bfa750064d32bf6ed896d7f3c752012f43f22e785105_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.17; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:f90cff7dcfb675370e32cc37bf3465b33a3c44a1de1127daaa8791519772ea12_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.17; registry.redhat.io/rhacm2/submariner-rhel9-operator@sha256:0714135f3594b0e42c4d185779b3a716fc98c6bc35135aa6dec2c9730c93ae52_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.17; registry.redhat.io/rhacm2/submariner-rhel9-operator@sha256:1c0fe9629265844d3cd36fa6fd358026087240dee118e1d438f3ac273f427054_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.17; and 2 more
    Red Hat Product Security ↗
  4. Vendor guidanceAuthoritative vendor guidance changed: added remediation: access.redhat.com/RHSA-2026:60386; removed remediation: access.redhat.com/RHSA-2026:63016; removed vendor advisory: access.redhat.com/RHSA-2026:63016.
    Before
    remediation: access.redhat.com/RHSA-2026:63016 · vendor advisory: access.redhat.com/RHSA-2026:63016
    After
    remediation: access.redhat.com/RHSA-2026:60386
    CNA ↗
  5. Vendor guidanceAuthoritative vendor guidance changed: added remediation: access.redhat.com/RHSA-2026:63016; added vendor advisory: access.redhat.com/RHSA-2026:63016; removed remediation: access.redhat.com/RHSA-2026:60386.
    Before
    remediation: access.redhat.com/RHSA-2026:60386
    After
    remediation: access.redhat.com/RHSA-2026:63016 · vendor advisory: access.redhat.com/RHSA-2026:63016
    access.redhat.com ↗
  6. Affected versionsThe structured affected or fixed version information changed.
    Before
    See the vendor and CVE records for the affected range. · Fixed: 1787689013 < *; 1787365971 < *; 1787362756 < *; 1787362733 < *; 1787362694 < *; 1787362658 < *
    After
    See the vendor and CVE records for the affected range. · Fixed: 1787689013 < *; 1787365971 < *; 1787362756 < *; 1787362733 < *; 1787362694 < *; 1787362658 < *; 1788105072 < *; 1788073481 < *
    CNA ↗
  7. CVSS scoreCVSS score changed from 6.5 (CVSS 3.1 · CNA · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N) to 5.4 (CVSS 3.1 · CNA · CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L).
    Before
    6.5 (CVSS 3.1 · CNA · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N)
    After
    5.4 (CVSS 3.1 · CNA · CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L)
    CNA ↗
  8. Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-66781 to remediation: access.redhat.com/CVE-2026-66781.
    Before
    remediation: access.redhat.com/CVE-2026-66781
    After
    remediation: access.redhat.com/CVE-2026-66781
    Red Hat Product Security ↗
  9. Remediation statusRemediation status changed from Mitigation available to Patch available.
    Before
    Mitigation available
    After
    Patch available
    Red Hat Product Security ↗
  10. Affected versionsThe structured affected or fixed version information changed.
    Before
    rhacm2/subctl-rhel9 as a component of Red Hat Advanced Cluster Management for Kubernetes 2; rhacm2/submariner-addon-rhel9 as a component of Red Hat Advanced Cluster Management for Kubernetes 2; rhacm2/submariner-operator-bundle as a component of Red Hat Advanced Cluster Management for Kubernetes 2; rhacm2/submariner-rhel9-operator as a component of Red Hat Advanced Cluster Management for Kubernetes 2
    After
    rhacm2/subctl-rhel9 as a component of Red Hat Advanced Cluster Management for Kubernetes 2; rhacm2/submariner-operator-bundle as a component of Red Hat Advanced Cluster Management for Kubernetes 2; rhacm2/submariner-rhel9-operator as a component of Red Hat Advanced Cluster Management for Kubernetes 2 · Fixed: registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:2fbd6ef5c48fafefc87038105bd5f0a9adda4f78d4d1cbffd900bb2db2a97c61_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.11; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:91d5a4c39064fb338dc9fa91d9f6a20395242604b5890e3dc0da420af408f3bb_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.11; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:b207a8392affeb32c71cf63e39aa40d1bf419684a6ea32da77f6d04b25f6a6fc_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.11; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:e8c301115ff09338f34f65e79b4884a24dc0c6d3dc612dd99eaab246cd466277_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.11; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:20de3cbdf6775c6bded5c61d5cb41763974fbc8589176bfa1dd4a301e44bda40_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.13; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:38c90541c3953d08e985a7ab20594236bd4f40878a701c9e90f0d6b80d4e6bf8_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.13; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:630a323bfc59dc076f32483e5339906a971c55fd7314f88fe3b2392c9644b292_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.13; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:ffd64199acb07d9350ca08f42554af0d3303b3ba9249b58e47369e191e48bcfb_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.13; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:260c10c0087a470b28353f0056d921c486d81e8bac8048172ce25a448029e411_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.14; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:26aad27dea6eec7e6bb1176a6c2a84fd513fe4e02538288bb916e71045739909_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.14; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:71aeaef24f1a5a09f5741a2a38953139f62ab5bd6cf4beb8d26521b472a3bf4d_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.14; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:a81e081ec630f462a43daea478c2db532563e5147fa23d4958fb994cb2054a0c_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.14; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:561f255ad4a3799e677f93fc4895ce1619075571b5e1059d62d6077ca6b75819_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.15; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:5a2a4779182969da2103c7e8a881be1a53d6880ab4019346b2d107db1f16fcd8_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.15; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:766c597445f38b5c5b3f80427914257cc0fd8c0836a4d59c3edbcd9adb08b4f6_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.15; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:d473436097c2cc1f0d9ed8d5e3af04bc212ddc1b90ae6941894429063d66d923_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.15; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:0c655b12c93dac187dd1ad1e605a0ddfecd80dbd62ccdc0f7c0dfd17cd66eb68_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.16; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:1590dc92d52579698718f9d1f89ed73784c936b0e47df93c5012c6c8f1c29b67_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.16; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:9e9cc1e147781ee32cc9474499bb4e6b8f9c2b23324c0a2e4f9e59aea63189e9_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.16; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:a5bca3e5cbf7eb79bb18f257f54042c51ee15641d8e4f9dcb292d188759f2587_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.16; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:32b26489841a5d4b184837e9a5c982ca11f6d1eb3d06dd08b360e5128846296e_amd64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.17; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:b518302800ea03146951c69fae26821471365327457c9380abfe94fdcd3b7514_arm64 as a component of Red Hat Advanced Cluster Management for Kubernetes 2.17; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:db4c5fce313340441af2bfa750064d32bf6ed896d7f3c752012f43f22e785105_s390x as a component of Red Hat Advanced Cluster Management for Kubernetes 2.17; registry.redhat.io/rhacm2/submariner-addon-rhel9@sha256:f90cff7dcfb675370e32cc37bf3465b33a3c44a1de1127daaa8791519772ea12_ppc64le as a component of Red Hat Advanced Cluster Management for Kubernetes 2.17
    Red Hat Product Security ↗
  11. Affected versionsThe structured affected or fixed version information changed.
    Before
    See the vendor and CVE records for the affected range. · Fixed: 1787689013 < *; 1787365971 < *; 1787362756 < *; 1787362733 < *; 1787362694 < *; 1787362658 < *; 1788105072 < *; 1788073481 < *
    After
    See the vendor and CVE records for the affected range. · Fixed: Red Hat Advanced Cluster Management for Kubernetes 2.11: 1787689013 < *; Red Hat Advanced Cluster Management for Kubernetes 2.13: 1787365971 < *; Red Hat Advanced Cluster Management for Kubernetes 2.14: 1787362756 < *; Red Hat Advanced Cluster Management for Kubernetes 2.15: 1787362733 < *; Red Hat Advanced Cluster Management for Kubernetes 2.16: 1787362694 < *; Red Hat Advanced Cluster Management for Kubernetes 2.17: 1787362658 < *
    CNA ↗
  12. CVSS scoreCVSS score changed from 5.4 (CVSS 3.1 · CNA · CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L) to 6.5 (CVSS 3.1 · CNA · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N).
    Before
    5.4 (CVSS 3.1 · CNA · CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L)
    After
    6.5 (CVSS 3.1 · CNA · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N)
    CNA ↗
  13. Affected versionsThe structured affected or fixed version information changed.
    Before
    See the vendor and CVE records for the affected range. · Fixed: 1787365971 < *; 1787362733 < *; 1787362658 < *
    After
    See the vendor and CVE records for the affected range. · Fixed: 1787689013 < *; 1787365971 < *; 1787362756 < *; 1787362733 < *; 1787362694 < *; 1787362658 < *
    CNA ↗
  14. Vendor guidanceAuthoritative vendor guidance changed: added remediation: access.redhat.com/RHSA-2026:60386.
    Before
    no authoritative guidance recorded
    After
    remediation: access.redhat.com/RHSA-2026:60386
    CNA ↗
  15. Affected versionsThe structured affected or fixed version information changed.
    Before
    See the vendor and CVE records for the affected range. · Fixed: No fixed version is explicitly recorded in the structured CVE data.
    After
    See the vendor and CVE records for the affected range. · Fixed: 1787365971 < *; 1787362733 < *; 1787362658 < *
    CNA ↗
  16. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    CNA ↗
  17. Catalogue recordCVE added to the BlackTree catalogue.
    CNA ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
Technical terms and abbreviations used in this report
CVE
Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS
Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS
Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE
Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA
CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP
Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD
National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT
A computer security incident response team that publishes warnings or coordinates incident response.
PoC
Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF
Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL
Living off the land: abuse of legitimate tools or system functions during an attack.
Free version - for non-commercial use only.CVE-2026-66781 · cve.blacktree.nl