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CVE-2025-55196— External Secrets Operator Missing Namespace Restriction in PushSecret and SecretStore List() Calls Allows Unauthorized Secret Access

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 0.15.0至0.19.2之前版本存在访问控制错误漏洞，该漏洞源于PushSecret控制器未应用命名空间选择器，可能导致跨集群读取敏感数据。

AI Predicted 8.1 Difficulty: Easy EPSS 0.36% · P29

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2025-55196

Vulnerability Information
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Vulnerability Title
External Secrets Operator Missing Namespace Restriction in PushSecret and SecretStore List() Calls Allows Unauthorized Secret Access
Source: CVE Program / CVE List V5
Vulnerability Description
External Secrets Operator is a Kubernetes operator that integrates external secret management systems. From version 0.15.0 to before 0.19.2, a vulnerability was discovered where the List() calls for Kubernetes Secret and SecretStore resources performed by the PushSecret controller did not apply a namespace selector. This flaw allowed an attacker to use label selectors to list and read secrets/secret-stores across the cluster, bypassing intended namespace restrictions. An attacker with the ability to create or update PushSecret resources and control SecretStore configurations could exploit this vulnerability to exfiltrate sensitive data from arbitrary namespaces. This could lead to full disclosure of Kubernetes secrets, including credentials, tokens, and other sensitive information stored in the cluster. This vulnerability has been patched in version 0.19.2. A workaround for this issue includes auditing and restricting RBAC permissions so that only trusted service accounts can create or update PushSecret and SecretStore resources.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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 0.15.0至0.19.2之前版本存在访问控制错误漏洞，该漏洞源于PushSecret控制器未应用命名空间选择器，可能导致跨集群读取敏感数据。
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 >= 0.15.0, < 0.19.2 -

II. Public POCs for CVE-2025-55196

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III. Intelligence Information for CVE-2025-55196

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IV. Related Vulnerabilities

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

V. Comments for CVE-2025-55196

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