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CVE-2025-62159— External Secrets Operator's BeyondTrust Provider has Insecure Secret Retrieval

Quick assessment

Affected
external-secrets external-secrets
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

External Secrets是External Secrets开源的一个 Kubernetes 相关应用程序。 External Secrets 0.10.1版本至0.19.2版本存在访问控制错误漏洞，该漏洞源于未验证命名空间上下文或密钥存储类型，可能导致未经授权的跨命名空间密钥访问。

AI Predicted 8.1 Difficulty: Moderate EPSS 0.30% · P23
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I. Basic Information for CVE-2025-62159

Vulnerability Information
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Vulnerability Title
External Secrets Operator's BeyondTrust Provider has Insecure Secret Retrieval
Source: CVE Program / CVE List V5
Vulnerability Description
External Secrets Operator reads information from a third-party service and automatically injects the values as Kubernetes Secrets. A vulnerability was discovered in the BeyondTrust provider implementation for External Secrets Operator versions 0.10.1 through 0.19.2. The provider previously retrieved Kubernetes secrets directly, without validating the namespace context or the type of secret store. This allowed unauthorized cross-namespace secret access, violating security boundaries and potentially exposing sensitive credentials. In version 0.20.0, the provider code was updated to use the `resolvers.SecretKeyRef` utility, which enforces namespace validation and only allows cross-namespace access for `ClusterSecretStore` types. This ensures secrets are only retrieved from the correct namespace, mitigating the risk of unauthorized access. All users should upgrade to the latest version containing this fix. As a workaround, use a policy engine such as Kyverno or OPA to prevent using BeyondTrust provider and/or validate the `(Cluster)SecretStore` and ensure the namespace may only be set when using a `ClusterSecretStore`.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
External Secrets 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
External Secrets是External Secrets开源的一个 Kubernetes 相关应用程序。 External Secrets 0.10.1版本至0.19.2版本存在访问控制错误漏洞，该漏洞源于未验证命名空间上下文或密钥存储类型，可能导致未经授权的跨命名空间密钥访问。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
external-secrets external-secrets >= 0.10.1, < 0.20.0 -

II. Public POCs for CVE-2025-62159

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III. Intelligence Information for CVE-2025-62159

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Vendor Advisories for CVE-2025-62159 (1)

IV. Related Vulnerabilities

Same product: external-secrets
Same vendor: external-secrets
Same weakness: CWE-284

V. Comments for CVE-2025-62159

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