{"id":"CVE-2026-50201","title":"Steeltoe's sensitive actuators (heapdump/env) only require Restricted permission","summary":"Steeltoe's sensitive actuators (heapdump/env) only require Restricted permission","severity":"medium","cvss":6.5,"cwe":["CWE-269","CWE-285"],"vendor":"Steeltoe","product":"Steeltoe.Management.Endpoint","ecosystem":"nuget","affected":["Steeltoe.Management.Endpoint <= 4.1.0","Steeltoe.Management.EndpointBase <= 3.3.0"],"patched":["Steeltoe.Management.Endpoint 4.2.0","Steeltoe.Management.EndpointBase 3.4.0"],"published":"2026-07-02","updated":"2026-07-02","source":"GHSA","sourceUrl":"https://github.com/advisories/GHSA-227r-jm2g-7cp4","references":[{"url":"https://github.com/SteeltoeOSS/security-advisories/security/advisories/GHSA-227r-jm2g-7cp4"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50201"},{"url":"https://github.com/SteeltoeOSS/Steeltoe/commit/b39defa4db5f44f8696c456866b3a5b900d8d96b"},{"url":"https://github.com/SteeltoeOSS/Steeltoe/commit/da6c604decd992f61aeef763f5814102dcb088c7"},{"url":"https://github.com/advisories/GHSA-227r-jm2g-7cp4"}],"tags":["ghsa","nuget"],"epss":0.00231,"epssPercentile":0.14142,"ingestedAt":"2026-07-02T20:42:45.630Z","slug":"CVE-2026-50201","body":"## Overview\n\n### Summary\n\nAll Steeltoe actuator endpoints default to `EndpointPermissions.Restricted`, which is mapped to Cloud Foundry's `read_basic_data` 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 `read_sensitive_data` permission flag is not enforced for those endpoints. Spring Boot's equivalent Cloud Foundry integration gates these endpoints with `read_sensitive_data` by default.\n\n### Impact\n\nAny 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 VCAP_SERVICES credentials. CF's `read_sensitive_data` permission, which is specifically designed to gate this access, has no effect.\n\n### Affected configuration\n\n- Application is deployed on Cloud Foundry with CF actuator and security middleware active (added automatically by `AddAllActuators()` when a CF environment is detected).\n- The attacker holds a CF role that grants `read_basic_data`: Space Auditor, Space Manager, or Org Auditor.\n\n### Mitigations\n\nIf an immediate upgrade is not possible:\n\n- Explicitly set `RequiredPermissions = EndpointPermissions.Full` in the options for `HeapDumpEndpointOptions`, `EnvironmentEndpointOptions`, and `ThreadDumpEndpointOptions`.\n- If heap dump, thread dump, or environment are not needed in production, register only the required actuators individually instead of using `AddAllActuators()`.\n\n## Affected packages\n\n- `Steeltoe.Management.Endpoint <= 4.1.0`\n- `Steeltoe.Management.EndpointBase <= 3.3.0`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `Steeltoe.Management.Endpoint 4.2.0`\n- `Steeltoe.Management.EndpointBase 3.4.0`","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}