CVE-2026-42875

published 2026-05-11

CVE-2026-42875: External Secrets Operator reads information from a third-party service and automatically injects the values as Kubernetes Secrets. Prior to 2.4.0, Namespaced…

Priority P4 30 medium 5.3 CVSS 4.0

AV N AC L AT N PR L UI N VC N VI N VA N SC L SI L SA N E X CR X IR X AR X MAV X MAC X MAT X MPR X MUI X MVC X MVI X MVA X MSC X MSI X MSA X S X AU X R X V X RE X U X

External Secrets Operator reads information from a third-party service and automatically injects the values as Kubernetes Secrets. Prior to 2.4.0, Namespaced SecretStore resources that used CAProvider with type ConfigMap could resolve CA material from another namespace when caProvider.namespace was set. This bypassed the namespace boundary enforced for SecretStore-backed references in providers that rely on the shared runtime CA resolver. This vulnerability is fixed in 2.4.0.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
external-secrets	external-secrets	< 2.4.0	2.4.0
github.com	external-secrets_external-secrets	>= 0 < 2.4.0	2.4.0

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CWE-285 CWE-668