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CVE-2026-50196GHSA-J8PH-6FXJ-G533

Steeltoe.Discovery.Eureka: Unrecognized DataCenterInfo.Name poisons entire registry fetch

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 4.2.0, 3.4.0
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

Steeltoe is an open source project that provides a collection of libraries that helps users build cloud-native applications. In Steeltoe.Discovery.Eureka prior to versions 4.2.0 and 3.4.0, `DataCenterInfo.FromJson` throws `ArgumentException` for any `name` value other than `"MyOwn"` or `"Amazon"`, despite the Java Eureka specification defining a third valid value: `"Netflix"`. The exception propagates through the entire registry deserialization chain and is swallowed by the periodic cache refresh task, leaving the local service registry permanently empty or stale. Versions 4.2.0 and 3.4.0 patch the issue. If an immediate upgrade is not possible, remove any registrations using unsupported `DataCenterInfo.name` values from the registry. In mixed Java/Spring and Steeltoe environments, audit for the `Netflix` data center type before deploying Steeltoe Eureka clients.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • SteeltoeOSS Steeltoe.Discovery.Eureka

    From 4.0.0 · fixed in 4.2.0; fixed in 3.4.0

  • Steeltoe.Discovery.EurekaNuGet

    From 4.0.0 · fixed in 4.2.0

  • Steeltoe.Discovery.EurekaNuGet

    fixed in 3.4.0

References 3

GitHub · SteeltoeOSS/security-advisories

GitHub · SteeltoeOSS/Steeltoe