CVE-2026-50200 Details
Description
Steeltoe is an open source project that provides a collection of libraries that helps users build cloud-native applications. In Steeltoe.Management.Endpoint prior to version 4.2.0 and Steeltoe.Management.EndpointCore prior to version 3.4.0, the `Sanitizer` component in the Environment actuator redacts configuration values by matching the configuration key name against a suffix list. The default list (`password`, `secret`, `key`, `token`, `.*credentials.*`, `vcap_services`) does not cover the standard .NET pattern `ConnectionStrings:<name>` or Steeltoe Connectors' `Steeltoe:Client:<type>:Default:ConnectionString`. There is no value-based scrubbing, so full connection string values including embedded `Password=` and `user:pass@host` segments are returned verbatim in `/actuator/env` responses. Steeltoe.Management.Endpoint 4.2.0 and Steeltoe.Management.EndpointCore 3.4.0 patch the issue. If an immediate upgrade is not possible: On the standard path, remove `env` from the actuator exposure list; add `.*connectionstring.*` to `KeysToSanitize` as a defense-in-depth measure for both paths; and/or require authorization on actuator endpoints.
A vulnerability exists in the Steeltoe Management Endpoint Environment actuator in versions prior to 4.2.0 and Steeltoe Management EndpointCore prior to 3.4.0. The issue arises because the 'Sanitizer' component fails to properly redact sensitive information from connection strings in the '/actuator/env' responses. By default, the sanitizer only removes certain keywords like 'password', 'secret', 'key', 'token', '.*credentials.*', and 'vcap_services', leaving connection strings with embedded credentials exposed. This vulnerability allows any caller with access to the '/actuator/env' endpoint to retrieve unredacted connection strings containing plaintext database credentials, which could be used to bypass the application layer and directly access the database.
Users can upgrade to Steeltoe Management Endpoint version 4.2.0 or Steeltoe Management EndpointCore version 3.4.0, where this vulnerability has been patched. If an immediate upgrade is not possible, remove 'env' from the actuator exposure list, add '.*connectionstring.*' to 'KeysToSanitize' as a defense-in-depth measure, and require authorization on actuator endpoints.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jun 17, 2026CISA-ADP
Assessed Jun 18, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-200 | Exposure of Sensitive Information to an Unauthorized Actor | [email protected] |
| CWE-319 | Cleartext Transmission of Sensitive Information | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Steeltoe.Management.Endpoint | <= 4.1.0 (semver) |
CPE
Remediation
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| Steeltoe.Management.EndpointCore | <= 3.3.0 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 18, 2026 | CVE Modified | CISA-ADP |
| Jun 17, 2026 | New CVE Received | [email protected] |