{"answers":{"affected":"4 open source packages ship an affected version, including Steeltoe.Discovery.Eureka.","exploited":"There is no known exploitation of CVE-2026-50196 in the wild and no public exploit code.","fix":"Upgrade Steeltoe.Discovery.Eureka to a fixed version for your release line: 3.4.0 or 4.2.0.","what":"CVE-2026-50196 is a high-severity denial of service vulnerability in SteeltoeOSS Steeltoe.Discovery.Eureka, published on 17 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-50196 and fix it if it is affected.\n\nWhat it is: CVE-2026-50196 is a high-severity denial of service vulnerability in SteeltoeOSS Steeltoe.Discovery.Eureka, published on 17 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-50196 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- Steeltoe.Discovery.Eureka (NuGet): affected all versions; fixed in 3.4.0\n- Steeltoe.Discovery.Eureka (NuGet): affected all versions; fixed in 3.4.0\n- Steeltoe.Discovery.Eureka (NuGet): affected from 4.0.0; fixed in 4.2.0\n- Steeltoe.Discovery.Eureka (NuGet): affected from 4.0.0; fixed in 4.2.0\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-50196/ (Markdown: https://insights.sbomify.com/CVE-2026-50196/index.md)","id":"CVE-2026-50196","markdown":"https://insights.sbomify.com/CVE-2026-50196/index.md","name":"CVE-2026-50196","record":{"aliases":["GHSA-j8ph-6fxj-g533"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Steeltoe Eureka client","requires_auth":"none","summary":"An attacker can cause a permanent denial of service in Steeltoe Eureka clients by registering a service with an unsupported DataCenterInfo name, breaking registry updates.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"},{"id":"CWE-20","name":"Improper Input Validation"}],"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.","ecosystems":["NuGet"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Steeltoe.Discovery.Eureka: Unrecognized DataCenterInfo.Name poisons entire registry fetch","id":"CVE-2026-50196","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"NuGet","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":4,"n_references":3,"next":{"headline":"Skipper: opaAuthorizeRequestWithBody filter bypasses OPA policy on Transfer-Encoding: chunked / HTTP/2 requests","id":"CVE-2026-50197"},"packages":[{"ecosystem":"NuGet","fixed":["3.4.0"],"introduced":["0"],"last_affected":[],"package":"Steeltoe.Discovery.Eureka","purl":null,"source":"GHSA-j8ph-6fxj-g533"},{"ecosystem":"NuGet","fixed":["3.4.0"],"introduced":["0"],"last_affected":[],"package":"Steeltoe.Discovery.Eureka","purl":"pkg:nuget/Steeltoe.Discovery.Eureka","source":"GHSA-j8ph-6fxj-g533"},{"ecosystem":"NuGet","fixed":["4.2.0"],"introduced":["4.0.0"],"last_affected":[],"package":"Steeltoe.Discovery.Eureka","purl":null,"source":"GHSA-j8ph-6fxj-g533"},{"ecosystem":"NuGet","fixed":["4.2.0"],"introduced":["4.0.0"],"last_affected":[],"package":"Steeltoe.Discovery.Eureka","purl":"pkg:nuget/Steeltoe.Discovery.Eureka","source":"GHSA-j8ph-6fxj-g533"}],"prev":{"headline":"containerd: CRI checkpoint import allows local image tag poisoning","id":"CVE-2026-50195"},"products":["Steeltoe.Discovery.Eureka"],"published":"2026-06-17","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-18","vendors":["SteeltoeOSS"]},"summary":"An attacker can cause a permanent denial of service in Steeltoe Eureka clients by registering a service with an unsupported DataCenterInfo name, breaking registry updates.","url":"https://insights.sbomify.com/CVE-2026-50196/"}