CVE-2026-50201 is a medium-severity improper privilege management vulnerability in Steeltoe.Management.Endpoint (nuget), affecting versions <= 4.1.0. It is fixed in 4.2.0, 3.4.0.
Summary All Steeltoe actuator endpoints default to EndpointPermissions.Restricted, which is mapped to Cloud Foundry's readbasicdata permission (granted to Space Auditors and similar low-trust roles). Sensitive actuators including heap dump, environment, and thread dump do not raise this to EndpointPermissions.Full, so CF's readsensitivedata permission flag is not enforced for those endpoints. Spring Boot's equivalent Cloud Foundry integration gates these endpoints with readsensitivedata by default. Impact Any CF user holding Space Auditor, Space Manager, or Org Auditor role can access the heap dump, environment, and thread dump actuators for any Steeltoe application in their space. A heap dump contains all in-memory data including database passwords, bearer tokens, and VCAPSERVICES credentials. CF's readsensitivedata permission, which is specifically designed to gate this access, has no effect. Affected configuration Application is deployed on Cloud Foundry with CF actuator and security middleware active (added automatically by AddAllActuators() when a CF environment is detected). The attacker holds a CF role that grants readbasic_data: Space Auditor, Space Manager, or Org Auditor. Mitigations If an immediate upgrade is not possible: Explicitly set RequiredPermissions = EndpointPermissions.Full in the options for HeapDumpEndpointOptions, EnvironmentEndpointOptions, and ThreadDumpEndpointOptions. If heap dump, thread dump, or environment are not needed in production, register only the required actuators individually instead of using AddAllActuators().
The application assigns, modifies, tracks, or checks privileges incorrectly, allowing a user to gain elevated access. Typical impact: privilege escalation beyond the intended level.
CVE-2026-50201 has a CVSS score of 6.5 (Medium). The vector is network-reachable, low privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment.
A fixed version is available (4.2.0, 3.4.0). Upgrading removes the vulnerable code path.
nuget
Steeltoe.Management.Endpoint (<= 4.1.0)Steeltoe.Management.EndpointBase (<= 3.3.0)Steeltoe.Management.Endpoint → 4.2.0 (nuget)Steeltoe.Management.EndpointBase → 3.4.0 (nuget)Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
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Already deployed Kodem? See CVE-2026-50201 in your environment →Upgrade the following packages to resolve this vulnerability:
Steeltoe.Management.Endpoint to 4.2.0 or laterSteeltoe.Management.EndpointBase to 3.4.0 or laterKodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.
CVE-2026-50201 is a medium-severity improper privilege management vulnerability in Steeltoe.Management.Endpoint (nuget), affecting versions <= 4.1.0. It is fixed in 4.2.0, 3.4.0. The application assigns, modifies, tracks, or checks privileges incorrectly, allowing a user to gain elevated access.
CVE-2026-50201 has a CVSS score of 6.5 (Medium). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
Steeltoe.Management.Endpoint (nuget) (versions <= 4.1.0)Steeltoe.Management.EndpointBase (nuget) (versions <= 3.3.0)Yes. CVE-2026-50201 is fixed in 4.2.0, 3.4.0. Upgrade to this version or later.
Whether CVE-2026-50201 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
Steeltoe.Management.Endpoint to 4.2.0 or laterSteeltoe.Management.EndpointBase to 3.4.0 or later