CVE-2026-42875 | THREATINT

Description

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.

PUBLISHED Reserved 2026-04-30 | Published 2026-05-11 | Updated 2026-05-11 | Assigner GitHub_M

MEDIUM: 5.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Problem types

CWE-285: Improper Authorization

CWE-668: Exposure of Resource to Wrong Sphere

Product status

< 2.4.0

affected

References

github.com/...ecrets/security/advisories/GHSA-wv26-88m5-6h59

cve.org (CVE-2026-42875)

nvd.nist.gov (CVE-2026-42875)

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