{"id":"GHSA-hr73-3gpv-hh6q","revision":null,"records":[{"revision":"bbea48fdf1e64c7d8a4150b2e3c9ce2e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-81515","aliases":[],"title":"Steeltoe.Discovery.Eureka: malformed enum/bool/timestamp field aborts entire registry fetch (DoS)","description":"Steeltoe is an open source project that provides a collection of libraries that helps users build cloud-native applications. From 4.0.0 until 4.3.0, EurekaDiscoveryClient deserializes the registry response as one unit, and an unrecognized actionType or status, a non-Boolean isCoordinatingDiscoveryServer, or a nonnumeric timestamp can abort the entire response. A principal that can register or update an instance can cause all connected Steeltoe clients to receive an empty or stale instance list until the malformed registration is removed. The JsonInstanceInfoConverter, BoolStringJsonConverter, and LongStringJsonConverter parsing paths are affected. This issue is distinct from the earlier DataCenterInfo.name parsing vulnerability. This issue is fixed in version 4.3.0.","state":0,"publishedAt":"2026-09-17T15:40:11.704+00:00","modifiedAt":"2026-09-21T20:50:19.404+00:00","affected":[{"ecosystem":"Vendor product","name":"security-advisories","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"SteeltoeOSS\",\n                    \"product\": \"security-advisories\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 4.0.0, < 4.3.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/SteeltoeOSS/security-advisories/security/advisories/GHSA-hr73-3gpv-hh6q","https://github.com/SteeltoeOSS/Steeltoe/commit/bc1c3763aacc1fee82ef9932f338ec08dcb00432","https://github.com/SteeltoeOSS/Steeltoe/releases/tag/4.3.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-81515","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-81515","identifiers":["CVE-2026-81515"]},"retained":false,"historicalAffected":[]},{"revision":"d91235943c4e447a90e28e4458c56e14","observedAt":"2026-11-11T16:10:17.591+00:00","statement":{"source":"euvd","id":"EUVD-2026-81901","aliases":["CVE-2026-81515","GHSA-hr73-3gpv-hh6q"],"title":"Steeltoe is an open source project that provides a collection of libraries that helps users build cloud-native applications. 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This issue is fixed in version 4.3.0.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":null}],"references":["https://github.com/SteeltoeOSS/security-advisories/security/advisories/GHSA-hr73-3gpv-hh6q","https://github.com/SteeltoeOSS/Steeltoe/commit/bc1c3763aacc1fee82ef9932f338ec08dcb00432","https://github.com/SteeltoeOSS/Steeltoe/releases/tag/4.3.0"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-81901","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Sep 17, 2026, 3:40:11 PM","dateUpdated":"Sep 21, 2026, 8:50:19 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-81901","identifiers":["EUVD-2026-81901","CVE-2026-81515","GHSA-hr73-3gpv-hh6q"]},"retained":false,"historicalAffected":[]},{"revision":"0e9f72d20f2f4c2ca131c06e0e611a68","observedAt":"2026-10-25T16:19:10.271+00:00","statement":{"source":"nvd","id":"CVE-2026-81515","aliases":[],"title":"Steeltoe is an open source project that provides a collection of libraries that helps users build cloud-native applications. From 4.0.0 until 4.3.0, EurekaDiscoveryClient deserializes the registry response as one unit, and an unrecognized a…","description":"Steeltoe is an open source project that provides a collection of libraries that helps users build cloud-native applications. From 4.0.0 until 4.3.0, EurekaDiscoveryClient deserializes the registry response as one unit, and an unrecognized actionType or status, a non-Boolean isCoordinatingDiscoveryServer, or a nonnumeric timestamp can abort the entire response. A principal that can register or update an instance can cause all connected Steeltoe clients to receive an empty or stale instance list until the malformed registration is removed. The JsonInstanceInfoConverter, BoolStringJsonConverter, and LongStringJsonConverter parsing paths are affected. This issue is distinct from the earlier DataCenterInfo.name parsing vulnerability. This issue is fixed in version 4.3.0.","state":0,"publishedAt":"2026-09-17T16:17:46.78+00:00","modifiedAt":"2026-09-24T21:22:19.873+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://github.com/SteeltoeOSS/Steeltoe/commit/bc1c3763aacc1fee82ef9932f338ec08dcb00432","https://github.com/SteeltoeOSS/Steeltoe/releases/tag/4.3.0","https://github.com/SteeltoeOSS/security-advisories/security/advisories/GHSA-hr73-3gpv-hh6q"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-81515","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Awaiting Analysis","weaknesses":["CWE-755"],"productCriteria":[],"sourceDates":{"published":"2026-09-17T16:17:46.780","lastModified":"2026-09-24T21:22:19.873"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-81515","identifiers":["CVE-2026-81515"]},"retained":false,"historicalAffected":[]},{"revision":"00081185e32b42628e80e4a85c1611f0","observedAt":"2026-10-23T16:01:25.029+00:00","statement":{"source":"osv","id":"GHSA-hr73-3gpv-hh6q","aliases":["CVE-2026-81515"],"title":"Steeltoe.Discovery.Eureka: malformed enum/bool/timestamp field aborts entire registry fetch (DoS)","description":"## Summary\n\nSteeltoe's Eureka discovery client deserializes the registry response as a single unit. If any registered instance contains a field value that cannot be parsed (for example, an unrecognized `actionType`, a non-boolean value for `isCoordinatingDiscoveryServer`, or a non-numeric timestamp), deserialization of the entire registry fails. All Steeltoe Eureka clients connected to that registry then receive an empty or stale instance list until the malformed registration is removed.\n\nThis is a related but distinct issue from [CVE-2026-50196](https://github.com/advisories/GHSA-j8ph-6fxj-g533), which addressed only the `DataCenterInfo.name` field.\n\n## Impact\n\nAny principal that can register or update a service instance in the Eureka registry can trigger a service-discovery outage for all Steeltoe applications connected to the same registry. The outage persists until the offending registration is removed.\n\n## Affected configuration\n\n* Application uses `EurekaDiscoveryClient` (any deployment, including self-hosted Eureka).\n* The registry contains at least one service instance with an unrecognized value in a field such as `actionType`, `status`, `isCoordinatingDiscoveryServer`, or timestamp fields.\n* Mixed-platform environments — for example, Java or Spring services co-existing in the same Eureka registry — are more likely to encounter this condition.\n\n## Mitigations\n\nIf an immediate upgrade is not possible:\n\n* Audit the Eureka registry for registrations containing non-standard field values, particularly those originating from non-.NET clients.\n* Restrict write access to the Eureka registration API to trusted services.","state":0,"publishedAt":"2026-09-17T20:30:45+00:00","modifiedAt":"2026-09-17T20:45:05.1746007+00:00","affected":[{"ecosystem":"NuGet","name":"Steeltoe.Discovery.Eureka","ranges":[{"type":"ECOSYSTEM","events":[{"kind":"introduced","version":"4.0.0"},{"kind":"fixed","version":"4.3.0"}]}],"versions":["4.0.0","4.1.0","4.2.0"],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/SteeltoeOSS/security-advisories/security/advisories/GHSA-hr73-3gpv-hh6q","https://nvd.nist.gov/vuln/detail/CVE-2026-81515","https://github.com/SteeltoeOSS/Steeltoe/commit/bc1c3763aacc1fee82ef9932f338ec08dcb00432","https://github.com/SteeltoeOSS/Steeltoe/releases/tag/4.3.0","https://github.com/SteeltoeOSS/security-advisories","https://github.com/advisories/GHSA-j8ph-6fxj-g533"],"sourceUrl":"https://github.com/advisories/GHSA-hr73-3gpv-hh6q","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-hr73-3gpv-hh6q","identifiers":["GHSA-hr73-3gpv-hh6q","CVE-2026-81515"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-12T11:55:28.1860721+00:00","complete":true,"records":1779,"lastAttemptAt":"2026-11-12T11:55:28.1860721+00:00","lastSuccessAt":"2026-11-12T11:55:28.4130785+00:00","error":null,"lastVerifiedAt":"2026-11-12T11:55:28.4130791+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-64752486c567b55b31fb0d7225f5222bcd0019564ac0ac5f0649e242c7b19299-4a4604796d7c0adea2c1c677026f25a1e039e4a95710b02ad846575329daaa79","complete":true,"records":424651,"lastAttemptAt":"2026-11-12T11:53:33.8199862+00:00","lastSuccessAt":"2026-11-12T11:53:33.7811873+00:00","error":null,"lastVerifiedAt":"2026-11-12T11:53:33.8199862+00:00","snapshotPublishedAt":"2026-11-12T11:27:22+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-0580dcc98aaa46a8935f8ff576f25037","complete":true,"records":13764,"lastAttemptAt":"2026-11-12T11:56:20.2141865+00:00","lastSuccessAt":"2026-11-12T11:56:20.209+00:00","error":null,"lastVerifiedAt":"2026-11-12T11:56:20.209+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13817,"expectedIdentifiers":13817,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-12T11:55:28.1860721+00:00","complete":true,"records":1097,"lastAttemptAt":"2026-11-12T11:55:28.1860721+00:00","lastSuccessAt":"2026-11-12T11:55:28.4142299+00:00","error":null,"lastVerifiedAt":"2026-11-12T11:55:28.4142304+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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