CVE-2026-50196
Steeltoe.Discovery.Eureka: Unrecognized DataCenterInfo.Name poisons entire registry fetch
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Deferred | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.45% · top 61% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
SteeltoeOSS · Steeltoe.Discovery.Eureka
- affected >= 4.0.0, < 4.2.0
- affected < 3.4.0
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- NuGetSteeltoe.Discovery.EurekaGHSA-j8ph-6fxj-g533 (opens in a new tab)
References (3)
- https://github.com/SteeltoeOSS/security-advisories/security/advisories/GHSA-j8ph-6fxj-g533 (opens in a new tab)x_refsource_CONFIRM
- https://github.com/SteeltoeOSS/Steeltoe/commit/b8ed8557bb595863e4f340051d16b26ba40a75f4 (opens in a new tab)x_refsource_MISC
- https://github.com/SteeltoeOSS/Steeltoe/commit/c34a7399e808d0d11dd977460e81df1f2722df28 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-j8ph-6fxj-g533 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-50196)Record last updated .