CVE-2026-78600 Incomplete Cleanup in Elastic Cloud on Kubernetes Leading to Unauthorized Cross-Namespace Credential Retention

Incomplete Cleanup CWE-459 in Elastic Cloud on Kubernetes ECK can lead to unauthorized access via Privilege Abuse CAPEC-122. Authentication credentials persist after a cross-namespace association has been denied by RBAC enforcement, allowing a low-privileged tenant to retain unauthorized read...

CVE-2026-78600

Elastic Cloud on Kubernetes (ECK) is affected by an Incomplete Cleanup (CWE-459) flaw where authentication credentials persist after a cross-namespace association is denied by RBAC enforcement. This allows a low-privileged tenant to retain unauthorized read access to an associated Elasticsearch c...

CVE-2026-78609 Incorrect Authorization in Elastic Cloud on Kubernetes Leading to Unauthorized Modification of Data

Incorrect Authorization CWE-863 in Elastic Cloud on Kubernetes ECK can lead to unauthorized modification of data via Metadata Spoofing CAPEC-690. An actor holding limited Kubernetes permissions confined to a single namespace could cause attacker-controlled certificate material to be included in t...

CVE-2026-78609

Elastic Cloud on Kubernetes (ECK) versions 2.6.0 through 3.4.1 are affected by an Incorrect Authorization flaw (CWE-863) that enables Metadata Spoofing (CAPEC-690). An actor with limited Kubernetes permissions in one namespace can inject attacker-controlled certificate material into the Elasticse...

CVE-2026-78609 Incorrect Authorization in Elastic Cloud on Kubernetes Leading to Unauthorized Modification of Data

Incorrect Authorization CWE-863 in Elastic Cloud on Kubernetes ECK can lead to unauthorized modification of data via Metadata Spoofing CAPEC-690. An actor holding limited Kubernetes permissions confined to a single namespace could cause attacker-controlled certificate material to be included in t...

EUVD-2026-70052

Incorrect Authorization CWE-863 in Elastic Cloud on Kubernetes ECK can lead to unauthorized modification of data via Metadata Spoofing CAPEC-690. An actor holding limited Kubernetes permissions confined to a single namespace could cause attacker-controlled certificate material to be included in t...

PT-2026-84742

Incorrect Authorization CWE-863 in Elastic Cloud on Kubernetes ECK can lead to unauthorized modification of data via Metadata Spoofing CAPEC-690. An actor holding limited Kubernetes permissions confined to a single namespace could cause attacker-controlled certificate material to be included in t...

CVE-2026-78600: Incomplete Cleanup

Incomplete Cleanup CWE-459 in Elastic Cloud on Kubernetes ECK can lead to unauthorized access via Privilege Abuse CAPEC-122. Authentication credentials persist after a cross-namespace association has been denied by RBAC enforcement, allowing a low-privileged tenant to retain unauthorized read...

PT-2026-84738

Incomplete Cleanup CWE-459 in Elastic Cloud on Kubernetes ECK can lead to unauthorized access via Privilege Abuse CAPEC-122. Authentication credentials persist after a cross-namespace association has been denied by RBAC enforcement, allowing a low-privileged tenant to retain unauthorized read...

CVE-2026-78609: Incorrect Authorization

Incorrect Authorization CWE-863 in Elastic Cloud on Kubernetes ECK can lead to unauthorized modification of data via Metadata Spoofing CAPEC-690. An actor holding limited Kubernetes permissions confined to a single namespace could cause attacker-controlled certificate material to be included in t...

Elastic Cloud on Kubernetes 3.5.0 Security Update (ESA-2026-146)

Incomplete Cleanup in Elastic Cloud on Kubernetes Leading to Unauthorized Cross-Namespace Credential Retention Incomplete Cleanup CWE-459 in Elastic Cloud on Kubernetes ECK can lead to unauthorized access via Privilege Abuse CAPEC-122. Authentication credentials persist after a cross-namespace...

Elastic Cloud on Kubernetes 3.5.0 Security Update (ESA-2026-145)

Incorrect Authorization in Elastic Cloud on Kubernetes Leading to Unauthorized Modification of Data Incorrect Authorization CWE-863 in Elastic Cloud on Kubernetes ECK can lead to unauthorized modification of data via Metadata Spoofing CAPEC-690. An actor holding limited Kubernetes permissions...

CVE-2026-72640

Summary: The Elastic Cloud on Kubernetes (ECK) operator has a vulnerability where it reads secret references from an annotation on secrets it manages and trusts the listed namespace without validating authorization. This allows a user with permissions limited to their own namespace to trigger a r...

CVE-2026-72648 Cleartext Storage of Sensitive Information in an Environment Variable in Elastic Cloud on Kubernetes Leading to Information Disclosure

Cleartext Storage of Sensitive Information in an Environment Variable CWE-526 in Elastic Cloud on Kubernetes ECK can lead to information disclosure via Retrieve Embedded Sensitive Data CAPEC-37. When ECK reconciles a Fleet Server resource that authenticates to Elasticsearch with a service account...

CVE-2026-72640: Unintended Proxy or Intermediary

The Elastic Cloud on Kubernetes ECK operator reads a list of secret references from an annotation on secrets it manages, and it accepts the namespace recorded in each reference without validating that the reference is authorized for the resource being reconciled. A user whose Kubernetes permissio...

CVE-2026-72648: Cleartext Storage of Sensitive Information in an Environment Variable

Cleartext Storage of Sensitive Information in an Environment Variable CWE-526 in Elastic Cloud on Kubernetes ECK can lead to information disclosure via Retrieve Embedded Sensitive Data CAPEC-37. When ECK reconciles a Fleet Server resource that authenticates to Elasticsearch with a service account...

Kibana 7.17.15, 8.11.1 Security Update (ESA-2026-53)

Improper Output Neutralization for Logs in Kibana Leading to Log Injection Improper Output Neutralization for Logs CWE-117 in Kibana can lead to log injection via Log Injection-Tampering-Forging CAPEC-93. An attacker can supply specially crafted input that is written to log files without proper...

Elasticsearch 8.19.17, 9.3.6, 9.4.3 Security Update (ESA-2026-43)

Allocation of Resources Without Limits or Throttling in Elasticsearch Leading to Denial of Service Allocation of Resources Without Limits or Throttling CWE-770 in Elasticsearch can lead to a denial of service via Excessive Allocation CAPEC-130. A user with elevated privileges can submit a special...

Elasticsearch 8.19.17, 9.3.6, 9.4.3 Security Update (ESA-2026-42)

Uncontrolled Recursion in Elasticsearch Leading to Denial of Service Uncontrolled Recursion CWE-674 in Elasticsearch can lead to a denial of service via Excessive Allocation CAPEC-130. An authenticated user can submit a specially crafted query that causes excessive resource consumption while the...

CVE-2026-40012 Information about ECS zero scoped answers might leak to clients that use a specific ECS

ECS zero scoped answers are stored in the packet cache while they should not. This impacts only configurations that have ECS enabled;...