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Full vulnerability report · 2026
CVE-2026-73268High confidence

Cluster-curator-controller: cluster-curator-controller: spec.install.overridejob allows arbitrary job spec injection

Red Hat · multicluster engine for Kubernetes 2.10

Official source article: Red Hat RHSA-2026:59556 ↗. Check the applicable product and release in the original source.

9.9CriticalCVSS 3.1
Recommended action
Within 7 days

Critical technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
R
Operational reassessment

Published severity in operational context

Open reassessment dashboard →
Published severityCriticalOperational priority:Critical, unchanged from published severity.unchanged

Evidence used

  • No CISA KEV confirmation is currently recorded.
  • EPSS is 0.88% for the current model date.

Compensating controls

  • Validate the affected product branch and deploy the verified fixed release.
  • Restrict the affected network interface to trusted sources where business-safe.
  • Monitor vendor guidance and exploitation sources for a material change.

Verification

  1. Confirm that the asset runs Red Hat multicluster engine for Kubernetes 2.10 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: Within 3 daysRemediation target: Within 90 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-2026-73268 · CSAF 2.0 · revision 3 · finalRed Hat Product Securitycluster-curator-controller: cluster-curator-controller: spec.install.overrideJob allows arbitrary Job spec injection
24 fixed

The vendor explicitly identifies these products or versions as containing the fix.

  • registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:18c24d419df62a0eea1661c1ee045d90c0af6b9b1b026db79ecb194eb90da729_arm64 as a component of multicluster engine for Kubernetes 2.10
  • registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:b2d8de5fe912b7310f3101c2643ef11dbcbbf1ce9c615bd08ed6b51d33e1524c_ppc64le as a component of multicluster engine for Kubernetes 2.10
  • registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:ce6f63545309f77de13631a75d9fa3e3060b053cb38eac4c5c673bfe2a41c772_amd64 as a component of multicluster engine for Kubernetes 2.10
  • registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:f4927579a55325aff443a687b205a5bc501cd76c4456eb5cb040ed7069b896e8_s390x as a component of multicluster engine for Kubernetes 2.10
  • registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:7da8150ea0d4fd79516fddd3a3f9cea0deec932eea7780995f979ce86a170610_s390x as a component of multicluster engine for Kubernetes 2.11
  • registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:a724ac704e271bafbb43a2b4a4ac3d394f118e4b00fd5137fbd61b4333b1c887_amd64 as a component of multicluster engine for Kubernetes 2.11
  • registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:db8de2f7d746129b52b64532b558639f4dc45ad606fc8b799c2660066e7d2501_arm64 as a component of multicluster engine for Kubernetes 2.11
  • registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:f4f18ad63f87cedc1490e848566c94b8f5f6130d03e32797a6d2e32c504626aa_ppc64le as a component of multicluster engine for Kubernetes 2.11
  • registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:217d5ddd1059827d1cd64e2a0b41a0434aea262176b5aad3855af97dd8e05c94_amd64 as a component of multicluster engine for Kubernetes 2.17
  • registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:58415a90cbee45b8fb6a8bd21a143010f2dae83262f0c3fb4bc6efc5a4ec0e2f_ppc64le as a component of multicluster engine for Kubernetes 2.17
  • registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:a08966e2deb53d78c9f4286446b6cb2c0c2e8a6c179ed182b9872cd6242de563_arm64 as a component of multicluster engine for Kubernetes 2.17
  • registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:eb2d1d70ec1ad7ed41a0109f648c8e08d06fc72be2eabcd56b80a93d3c931c65_s390x as a component of multicluster engine for Kubernetes 2.17
Summary
A flaw was found in the cluster-curator-controller component of multicluster engine (MCE). A tenant with create or update permissions on ClusterCurator resources can inject an arbitrary Job specification. This is possible because the CreateJob() function does not validate user-controlled input when unmarshaling the spec.install.overrideJob raw extension. Successful exploitation allows the injected Job to run with the controller's elevated privileges, leading to arbitrary code execution and privilege escalation, potentially accessing cluster-wide secrets.
Remediation
For multicluster engine for Kubernetes, see the following documentation for details on how to install the images: https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.15/html/clusters/cluster_mce_overview#mce-install-intro
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-2026-57442

No EUVD known-exploited evidence

A flaw was found in the cluster-curator-controller component of multicluster engine (MCE). A tenant with create or update permissions on ClusterCurator resources can inject an arbitrary Job specification. This is possible because the CreateJob() function does not validate user-controlled input when unmarshaling the spec.install.overrideJob raw extension. Successful exploitation allows the injected Job to run with the controller's elevated privileges, leading to arbitrary code execution and privilege escalation, potentially accessing cluster-wide secrets.

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
9.9 · CVSS 3.1
Advisory evidence
No linked advisory details stored yet
Recommended actionWithin 7 days

Critical technical severity; prioritise exposed affected systems while verifying vendor guidance.

Patch available
01

What, why and how

A flaw was found in the cluster-curator-controller component of multicluster engine (MCE). A tenant with create or update permissions on ClusterCurator resources can inject an arbitrary Job specification. This is possible because the CreateJob() function does not validate user-controlled input when unmarshaling the spec.install.overrideJob raw extension. Successful exploitation allows the injected Job to run with the controller's elevated privileges, leading to arbitrary code execution and privilege escalation, potentially accessing cluster-wide secrets.

What

A flaw was found in the cluster-curator-controller component of multicluster engine (MCE). A tenant with create or update permissions on ClusterCurator resources can inject an arbitrary Job specification. This is possible because the CreateJob() function does not validate user-controlled input when unmarshaling the spec.install.overrideJob raw extension. Successful exploitation allows the injected Job to run with the controller's elevated privileges, leading to arbitrary code execution and privilege escalation, potentially accessing cluster-wide secrets.

Why

Untrusted data can cross into a code-evaluation path and be interpreted as executable instructions.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may execute code or commands in the affected security context.

What

A flaw was found in the cluster-curator-controller component of multicluster engine (MCE). A tenant with create or update permissions on ClusterCurator resources can inject an arbitrary Job specification. This is possible because the CreateJob() function does not validate user-controlled input when unmarshaling the spec.install.overrideJob raw extension. Successful exploitation allows the injected Job to run with the controller's elevated privileges, leading to arbitrary code execution and privilege escalation, potentially accessing cluster-wide secrets.

Why

Untrusted data can cross into a code-evaluation path and be interpreted as executable instructions.

How

An attacker operating through a network path may attempt exploitation with low privileges. If successful, the issue may execute code or commands in the affected security context.

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
a network path → Improper Control of Generation of Code ('Code Injection') → execute code or commands in the affected security context
Attack surface
Network
Privileges required
Low: a basic authenticated account is required
User interaction
None
Attack complexity
Low: no specialised conditions are recorded
Security boundary
Changed: exploitation can affect a different security authority
Weakness
?CWE means Common Weakness Enumeration: a standard category for the underlying weakness.
CWE-94 ↗

CWE-94: Improper Control of Generation of Code ('Code Injection'). The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

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

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

AVNetworkAttack vector: The vulnerable component can be reached over a network.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.SChangedScope: The attack can affect a component governed by a different security authority.CHighConfidentiality impact: A successful attack can cause a major loss.IHighIntegrity impact: A successful attack can cause a major loss.AHighAvailability impact: A successful attack can cause a major loss.
Post-exploitation / living off the land
After compromise, an attacker may use built-in shells, scripting engines, scheduled tasks and native network utilities for discovery, persistence or movement. This is a plausible LoTL path, not evidence that it has occurred for every attack.
NetworkRemote code executionPrivilege escalationCWE-94
A

Official authority intelligence

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

ENISA EUVD · EUVD-2026-57442Official EUVD mapping

A flaw was found in the cluster-curator-controller component of multicluster engine (MCE). A tenant with create or update permissions on ClusterCurator resources can inject an arbitrary Job specification. This is possible because the CreateJob() function does not validate user-controlled input when unmarshaling the spec.install.overrideJob raw extension. Successful exploitation allows the injected Job to run with the controller's elevated privileges, leading to arbitrary code execution and privilege escalation, potentially accessing cluster-wide secrets.

Official EUVD record ↗
Cyber Security Agency of Singapore · English · CSA-SB-20260819Security Bulletin 19 Aug 2026

The Cyber Security Agency of Singapore included this CVE in its official Security Bulletin 19 Aug 2026, published on 19 August 2026. Open the linked bulletin for the product, severity and reference information published in that issue.

Official advisory ↗
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
Fixed
Action
For multicluster engine for Kubernetes, see the following documentation for details on how to install the images: https://access.redhat.com/documentation/en-us/red_hat_advanced_cluster_management_for_kubernetes/2.15/html/clusters/cluster_mce_overview#mce-install-intro
Workaround
No verified workaround is recorded. If business-safe, reduce exposure to the affected interface and allow only trusted sources until authoritative guidance is available.
04

Evidence and provenance

Published 12 Aug 2026 · Last source change 29 Sept 2026, 19:41 UTC · CWE-94 · Improper Control of Generation of Code ('Code Injection')

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 2026-08-14
European sourceENISA EUVD · EUVD-2026-57442
Product sourceCNA
Remediation sourceVendor CSAF · Red Hat Product Security
CWE sourceCNA
NVD statusNVD awaiting enrichment

Missing structured fields: affected versions. Missing data is not evidence of low risk; review the primary advisory.

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: multicluster engine for Kubernetes 2.1: 1787201612 < *; multicluster engine for Kubernetes 2.11: 1787238383 < *; multicluster engine for Kubernetes 2.17: 1786750700 < *; multicluster engine for Kubernetes 2.6: 1787264185 < *; multicluster engine for Kubernetes 2.8: 1787259011 < *; multicluster engine for Kubernetes 2.9: 1787201646 < *
    After
    See the vendor and CVE records for the affected range. · Fixed: multicluster engine for Kubernetes 2.10: 1787201612 < *; multicluster engine for Kubernetes 2.11: 1787238383 < *; multicluster engine for Kubernetes 2.17: 1786750700 < *; multicluster engine for Kubernetes 2.6: 1787264185 < *; multicluster engine for Kubernetes 2.8: 1787259011 < *; multicluster engine for Kubernetes 2.9: 1787201646 < *
    CNA ↗
  2. Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-73268 to remediation: access.redhat.com/CVE-2026-73268.
    Before
    remediation: access.redhat.com/CVE-2026-73268
    After
    remediation: access.redhat.com/CVE-2026-73268
    Red Hat Product Security ↗
  3. Affected versionsThe structured affected or fixed version information changed.
    Before
    Fixed: registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:7da8150ea0d4fd79516fddd3a3f9cea0deec932eea7780995f979ce86a170610_s390x as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:a724ac704e271bafbb43a2b4a4ac3d394f118e4b00fd5137fbd61b4333b1c887_amd64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:db8de2f7d746129b52b64532b558639f4dc45ad606fc8b799c2660066e7d2501_arm64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:f4f18ad63f87cedc1490e848566c94b8f5f6130d03e32797a6d2e32c504626aa_ppc64le as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:217d5ddd1059827d1cd64e2a0b41a0434aea262176b5aad3855af97dd8e05c94_amd64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:58415a90cbee45b8fb6a8bd21a143010f2dae83262f0c3fb4bc6efc5a4ec0e2f_ppc64le as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:a08966e2deb53d78c9f4286446b6cb2c0c2e8a6c179ed182b9872cd6242de563_arm64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:eb2d1d70ec1ad7ed41a0109f648c8e08d06fc72be2eabcd56b80a93d3c931c65_s390x as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:18c24d419df62a0eea1661c1ee045d90c0af6b9b1b026db79ecb194eb90da729_arm64 as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:b2d8de5fe912b7310f3101c2643ef11dbcbbf1ce9c615bd08ed6b51d33e1524c_ppc64le as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:ce6f63545309f77de13631a75d9fa3e3060b053cb38eac4c5c673bfe2a41c772_amd64 as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:f4927579a55325aff443a687b205a5bc501cd76c4456eb5cb040ed7069b896e8_s390x as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:1ac9661a442222942a9a085be2c492325517626281d555f89cb5494cb8d0640f_arm64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:22e29cd4be20eee653f291036994e8387bf058ba8cb34d7268d6b313fda1fa73_ppc64le as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:515e1b8d4d85bb49f87cdd857ab193707cd27c50492661d3fcfe7d39618807e9_amd64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:95c9022b4f4afeef1fb7e45e52ef8c656e6aad20a1a7152ebeb7513d7fd90f90_s390x as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:01a94e2860bf5871f9b3fea049a291b487ac319b6521241a52cc08d0b23162da_ppc64le as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:6d312615def25d135953ff42f49acff39ebe4876e1e1ceb3854416530a0c1523_s390x as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:8b24eece2c66427808627fd4ca91eba779c2958d32896ccb6cc7585af7b8528d_amd64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:97a4040d296bceb72425636faf1542845d30cdbe23b9505cf7fab4cc0f64ca70_arm64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:7cea38767a8d325bc3baefafd1845c104de88115bff509d5dc945ffb543a9f86_ppc64le as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:8430a5c05f5bd902fe241a06b9b354e2c0a6d1f14176c29d6b0e096173bcb2be_s390x as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:c70617a156df7c8ae7bc096e54ac450d2aa03f0d79bfd524387d5b95926b4b6d_arm64 as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:c732c25aedb88b7390b4e98796cf0d5e9ff926dfec95067065630ecdb977b70c_amd64 as a component of multicluster engine for Kubernetes 2.9
    After
    Fixed: registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:18c24d419df62a0eea1661c1ee045d90c0af6b9b1b026db79ecb194eb90da729_arm64 as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:b2d8de5fe912b7310f3101c2643ef11dbcbbf1ce9c615bd08ed6b51d33e1524c_ppc64le as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:ce6f63545309f77de13631a75d9fa3e3060b053cb38eac4c5c673bfe2a41c772_amd64 as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:f4927579a55325aff443a687b205a5bc501cd76c4456eb5cb040ed7069b896e8_s390x as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:7da8150ea0d4fd79516fddd3a3f9cea0deec932eea7780995f979ce86a170610_s390x as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:a724ac704e271bafbb43a2b4a4ac3d394f118e4b00fd5137fbd61b4333b1c887_amd64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:db8de2f7d746129b52b64532b558639f4dc45ad606fc8b799c2660066e7d2501_arm64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:f4f18ad63f87cedc1490e848566c94b8f5f6130d03e32797a6d2e32c504626aa_ppc64le as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:217d5ddd1059827d1cd64e2a0b41a0434aea262176b5aad3855af97dd8e05c94_amd64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:58415a90cbee45b8fb6a8bd21a143010f2dae83262f0c3fb4bc6efc5a4ec0e2f_ppc64le as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:a08966e2deb53d78c9f4286446b6cb2c0c2e8a6c179ed182b9872cd6242de563_arm64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:eb2d1d70ec1ad7ed41a0109f648c8e08d06fc72be2eabcd56b80a93d3c931c65_s390x as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:1ac9661a442222942a9a085be2c492325517626281d555f89cb5494cb8d0640f_arm64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:22e29cd4be20eee653f291036994e8387bf058ba8cb34d7268d6b313fda1fa73_ppc64le as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:515e1b8d4d85bb49f87cdd857ab193707cd27c50492661d3fcfe7d39618807e9_amd64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:95c9022b4f4afeef1fb7e45e52ef8c656e6aad20a1a7152ebeb7513d7fd90f90_s390x as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:01a94e2860bf5871f9b3fea049a291b487ac319b6521241a52cc08d0b23162da_ppc64le as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:6d312615def25d135953ff42f49acff39ebe4876e1e1ceb3854416530a0c1523_s390x as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:8b24eece2c66427808627fd4ca91eba779c2958d32896ccb6cc7585af7b8528d_amd64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:97a4040d296bceb72425636faf1542845d30cdbe23b9505cf7fab4cc0f64ca70_arm64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:7cea38767a8d325bc3baefafd1845c104de88115bff509d5dc945ffb543a9f86_ppc64le as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:8430a5c05f5bd902fe241a06b9b354e2c0a6d1f14176c29d6b0e096173bcb2be_s390x as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:c70617a156df7c8ae7bc096e54ac450d2aa03f0d79bfd524387d5b95926b4b6d_arm64 as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:c732c25aedb88b7390b4e98796cf0d5e9ff926dfec95067065630ecdb977b70c_amd64 as a component of multicluster engine for Kubernetes 2.9
    Red Hat Product Security ↗
  4. Affected versionsThe structured affected or fixed version information changed.
    Before
    See the vendor and CVE records for the affected range. · Fixed: multicluster engine for Kubernetes 2.10: 1787201612 < *; multicluster engine for Kubernetes 2.11: 1787238383 < *; multicluster engine for Kubernetes 2.17: 1786750700 < *; multicluster engine for Kubernetes 2.6: 1787264185 < *; multicluster engine for Kubernetes 2.8: 1787259011 < *; multicluster engine for Kubernetes 2.9: 1787201646 < *
    After
    See the vendor and CVE records for the affected range. · Fixed: multicluster engine for Kubernetes 2.1: 1787201612 < *; multicluster engine for Kubernetes 2.11: 1787238383 < *; multicluster engine for Kubernetes 2.17: 1786750700 < *; multicluster engine for Kubernetes 2.6: 1787264185 < *; multicluster engine for Kubernetes 2.8: 1787259011 < *; multicluster engine for Kubernetes 2.9: 1787201646 < *
    CNA ↗
  5. Vendor guidanceAuthoritative vendor guidance changed: added remediation: access.redhat.com/RHSA-2026:59556; removed remediation: access.redhat.com/RHSA-2026:59557; removed vendor advisory: access.redhat.com/RHSA-2026:59557; 3 further removals.
    Before
    remediation: access.redhat.com/RHSA-2026:59557 · vendor advisory: access.redhat.com/RHSA-2026:59557 · vendor advisory: access.redhat.com/RHSA-2026:59558 · 2 more references
    After
    remediation: access.redhat.com/RHSA-2026:59556
    CNA ↗
  6. Vendor guidanceAuthoritative vendor guidance changed from remediation: access.redhat.com/CVE-2026-73268 to remediation: access.redhat.com/CVE-2026-73268.
    Before
    remediation: access.redhat.com/CVE-2026-73268
    After
    remediation: access.redhat.com/CVE-2026-73268
    Red Hat Product Security ↗
  7. Affected versionsThe structured affected or fixed version information changed.
    Before
    Fixed: registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:18c24d419df62a0eea1661c1ee045d90c0af6b9b1b026db79ecb194eb90da729_arm64 as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:b2d8de5fe912b7310f3101c2643ef11dbcbbf1ce9c615bd08ed6b51d33e1524c_ppc64le as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:ce6f63545309f77de13631a75d9fa3e3060b053cb38eac4c5c673bfe2a41c772_amd64 as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:f4927579a55325aff443a687b205a5bc501cd76c4456eb5cb040ed7069b896e8_s390x as a component of multicluster engine for Kubernetes 2.10; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:7da8150ea0d4fd79516fddd3a3f9cea0deec932eea7780995f979ce86a170610_s390x as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:a724ac704e271bafbb43a2b4a4ac3d394f118e4b00fd5137fbd61b4333b1c887_amd64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:db8de2f7d746129b52b64532b558639f4dc45ad606fc8b799c2660066e7d2501_arm64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:f4f18ad63f87cedc1490e848566c94b8f5f6130d03e32797a6d2e32c504626aa_ppc64le as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:217d5ddd1059827d1cd64e2a0b41a0434aea262176b5aad3855af97dd8e05c94_amd64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:58415a90cbee45b8fb6a8bd21a143010f2dae83262f0c3fb4bc6efc5a4ec0e2f_ppc64le as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:a08966e2deb53d78c9f4286446b6cb2c0c2e8a6c179ed182b9872cd6242de563_arm64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:eb2d1d70ec1ad7ed41a0109f648c8e08d06fc72be2eabcd56b80a93d3c931c65_s390x as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:1ac9661a442222942a9a085be2c492325517626281d555f89cb5494cb8d0640f_arm64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:22e29cd4be20eee653f291036994e8387bf058ba8cb34d7268d6b313fda1fa73_ppc64le as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:515e1b8d4d85bb49f87cdd857ab193707cd27c50492661d3fcfe7d39618807e9_amd64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:95c9022b4f4afeef1fb7e45e52ef8c656e6aad20a1a7152ebeb7513d7fd90f90_s390x as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:01a94e2860bf5871f9b3fea049a291b487ac319b6521241a52cc08d0b23162da_ppc64le as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:6d312615def25d135953ff42f49acff39ebe4876e1e1ceb3854416530a0c1523_s390x as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:8b24eece2c66427808627fd4ca91eba779c2958d32896ccb6cc7585af7b8528d_amd64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:97a4040d296bceb72425636faf1542845d30cdbe23b9505cf7fab4cc0f64ca70_arm64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:7cea38767a8d325bc3baefafd1845c104de88115bff509d5dc945ffb543a9f86_ppc64le as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:8430a5c05f5bd902fe241a06b9b354e2c0a6d1f14176c29d6b0e096173bcb2be_s390x as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:c70617a156df7c8ae7bc096e54ac450d2aa03f0d79bfd524387d5b95926b4b6d_arm64 as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:c732c25aedb88b7390b4e98796cf0d5e9ff926dfec95067065630ecdb977b70c_amd64 as a component of multicluster engine for Kubernetes 2.9
    After
    Fixed: registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:7da8150ea0d4fd79516fddd3a3f9cea0deec932eea7780995f979ce86a170610_s390x as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:a724ac704e271bafbb43a2b4a4ac3d394f118e4b00fd5137fbd61b4333b1c887_amd64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:db8de2f7d746129b52b64532b558639f4dc45ad606fc8b799c2660066e7d2501_arm64 as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:f4f18ad63f87cedc1490e848566c94b8f5f6130d03e32797a6d2e32c504626aa_ppc64le as a component of multicluster engine for Kubernetes 2.11; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:217d5ddd1059827d1cd64e2a0b41a0434aea262176b5aad3855af97dd8e05c94_amd64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:58415a90cbee45b8fb6a8bd21a143010f2dae83262f0c3fb4bc6efc5a4ec0e2f_ppc64le as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:a08966e2deb53d78c9f4286446b6cb2c0c2e8a6c179ed182b9872cd6242de563_arm64 as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:eb2d1d70ec1ad7ed41a0109f648c8e08d06fc72be2eabcd56b80a93d3c931c65_s390x as a component of multicluster engine for Kubernetes 2.17; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:18c24d419df62a0eea1661c1ee045d90c0af6b9b1b026db79ecb194eb90da729_arm64 as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:b2d8de5fe912b7310f3101c2643ef11dbcbbf1ce9c615bd08ed6b51d33e1524c_ppc64le as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:ce6f63545309f77de13631a75d9fa3e3060b053cb38eac4c5c673bfe2a41c772_amd64 as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:f4927579a55325aff443a687b205a5bc501cd76c4456eb5cb040ed7069b896e8_s390x as a component of multicluster engine for Kubernetes 2.1; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:1ac9661a442222942a9a085be2c492325517626281d555f89cb5494cb8d0640f_arm64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:22e29cd4be20eee653f291036994e8387bf058ba8cb34d7268d6b313fda1fa73_ppc64le as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:515e1b8d4d85bb49f87cdd857ab193707cd27c50492661d3fcfe7d39618807e9_amd64 as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:95c9022b4f4afeef1fb7e45e52ef8c656e6aad20a1a7152ebeb7513d7fd90f90_s390x as a component of multicluster engine for Kubernetes 2.6; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:01a94e2860bf5871f9b3fea049a291b487ac319b6521241a52cc08d0b23162da_ppc64le as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:6d312615def25d135953ff42f49acff39ebe4876e1e1ceb3854416530a0c1523_s390x as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:8b24eece2c66427808627fd4ca91eba779c2958d32896ccb6cc7585af7b8528d_amd64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:97a4040d296bceb72425636faf1542845d30cdbe23b9505cf7fab4cc0f64ca70_arm64 as a component of multicluster engine for Kubernetes 2.8; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:7cea38767a8d325bc3baefafd1845c104de88115bff509d5dc945ffb543a9f86_ppc64le as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:8430a5c05f5bd902fe241a06b9b354e2c0a6d1f14176c29d6b0e096173bcb2be_s390x as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:c70617a156df7c8ae7bc096e54ac450d2aa03f0d79bfd524387d5b95926b4b6d_arm64 as a component of multicluster engine for Kubernetes 2.9; registry.redhat.io/multicluster-engine/cluster-curator-controller-rhel9@sha256:c732c25aedb88b7390b4e98796cf0d5e9ff926dfec95067065630ecdb977b70c_amd64 as a component of multicluster engine for Kubernetes 2.9
    Red Hat Product Security ↗
  8. Affected versionsThe structured affected or fixed version information changed.
    Before
    See the vendor and CVE records for the affected range. · Fixed: 1787201612 < *; 1787238383 < *; 1786750700 < *; 1787264185 < *; 1787259011 < *; 1787201646 < *
    After
    See the vendor and CVE records for the affected range. · Fixed: multicluster engine for Kubernetes 2.10: 1787201612 < *; multicluster engine for Kubernetes 2.11: 1787238383 < *; multicluster engine for Kubernetes 2.17: 1786750700 < *; multicluster engine for Kubernetes 2.6: 1787264185 < *; multicluster engine for Kubernetes 2.8: 1787259011 < *; multicluster engine for Kubernetes 2.9: 1787201646 < *
    CNA ↗
  9. Vendor guidanceAuthoritative vendor guidance changed: added remediation: access.redhat.com/RHSA-2026:59557; added vendor advisory: access.redhat.com/RHSA-2026:59557; removed remediation: access.redhat.com/RHSA-2026:59556; 3 further additions.
    Before
    remediation: access.redhat.com/RHSA-2026:59556
    After
    remediation: access.redhat.com/RHSA-2026:59557 · vendor advisory: access.redhat.com/RHSA-2026:59557 · vendor advisory: access.redhat.com/RHSA-2026:59558 · 2 more references
    access.redhat.com ↗
  10. Affected versionsThe structured affected or fixed version information changed.
    Before
    See the vendor and CVE records for the affected range. · Fixed: 1787238383 < *; 1786750700 < *
    After
    See the vendor and CVE records for the affected range. · Fixed: 1787201612 < *; 1787238383 < *; 1786750700 < *; 1787264185 < *; 1787259011 < *; 1787201646 < *
    CNA ↗
  11. Vendor guidanceAuthoritative vendor guidance changed: added remediation: access.redhat.com/RHSA-2026:59556; removed remediation: access.redhat.com/RHSA-2026:59593; removed vendor advisory: access.redhat.com/RHSA-2026:59593.
    Before
    remediation: access.redhat.com/RHSA-2026:59593 · vendor advisory: access.redhat.com/RHSA-2026:59593
    After
    remediation: access.redhat.com/RHSA-2026:59556
    CNA ↗
  12. Vendor guidanceAuthoritative vendor guidance changed: added remediation: access.redhat.com/RHSA-2026:59593; added vendor advisory: access.redhat.com/RHSA-2026:59593; removed remediation: access.redhat.com/RHSA-2026:59556.
    Before
    remediation: access.redhat.com/RHSA-2026:59556
    After
    remediation: access.redhat.com/RHSA-2026:59593 · vendor advisory: access.redhat.com/RHSA-2026:59593
    access.redhat.com ↗
  13. Affected versionsThe structured affected or fixed version information changed.
    Before
    See the vendor and CVE records for the affected range. · Fixed: 1787238383 < *
    After
    See the vendor and CVE records for the affected range. · Fixed: 1787238383 < *; 1786750700 < *
    CNA ↗
  14. Vendor guidanceAuthoritative vendor guidance changed: removed vendor advisory: access.redhat.com/RHSA-2026:59556.
    Before
    remediation: access.redhat.com/RHSA-2026:59556 · vendor advisory: access.redhat.com/RHSA-2026:59556
    After
    remediation: access.redhat.com/RHSA-2026:59556
    CNA ↗
  15. Vendor guidanceAuthoritative vendor guidance changed: added remediation: access.redhat.com/RHSA-2026:59556; added vendor advisory: access.redhat.com/RHSA-2026:59556.
    Before
    no authoritative guidance recorded
    After
    remediation: access.redhat.com/RHSA-2026:59556 · vendor advisory: access.redhat.com/RHSA-2026:59556
    access.redhat.com ↗
  16. 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: 1787238383 < *
    CNA ↗
  17. Remediation statusRemediation status changed from Awaiting fix to Patch available.
    Before
    Awaiting fix
    After
    Patch available
    access.redhat.com ↗
Material fields only · duplicate refreshes suppressed · history retained for the configured operational retention period
CVE published
Fixed release or patch reference recorded
ENISA EUVD · EUVD-2026-57442↗Vendor CSAF · Red Hat Product Security↗CVE authority or vendor reference · Red Hat RHSA-2026:59556↗Official CVE record (CNA and ADP data)↗NVD record↗
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-2026-73268 · cve.blacktree.nl