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Steeltoe.Configuration.Encryption version 4.2.0 patches the issue.","state":0,"publishedAt":"2026-06-17T22:01:19.712+00:00","modifiedAt":"2026-06-18T13:53:58.47+00:00","affected":[{"ecosystem":"Vendor product","name":"Steeltoe.Configuration.Encryption","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"SteeltoeOSS\",\n                    \"product\": \"Steeltoe.Configuration.Encryption\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 4.0.0, < 4.2.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N","score":1.9,"severity":"LOW"}],"references":["https://github.com/SteeltoeOSS/security-advisories/security/advisories/GHSA-4j9m-h44m-2hv8","https://github.com/SteeltoeOSS/Steeltoe/commit/6cfee5cccddf8f9a31de69b0ca5ccdd771b73e5b"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-50268","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-50268","identifiers":["CVE-2026-50268"]},"retained":false,"historicalAffected":[]},{"revision":"b93046c18ebf4266bb6187837a7ade16","observedAt":"2026-11-07T11:33:27.807+00:00","statement":{"source":"euvd","id":"EUVD-2026-37821","aliases":["CVE-2026-50268","GHSA-4j9m-h44m-2hv8"],"title":"Steeltoe is an open source project that provides a collection of libraries that helps users build cloud-native applications. 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Steeltoe.Configuration.Encryption version 4.2.0 patches the issue.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N","score":1.9,"severity":null}],"references":["https://github.com/SteeltoeOSS/security-advisories/security/advisories/GHSA-4j9m-h44m-2hv8","https://github.com/SteeltoeOSS/Steeltoe/commit/6cfee5cccddf8f9a31de69b0ca5ccdd771b73e5b"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-37821","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Jun 17, 2026, 10:01:19 PM","dateUpdated":"Jun 18, 2026, 1:53:58 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-2026-37821","identifiers":["EUVD-2026-37821","CVE-2026-50268","GHSA-4j9m-h44m-2hv8"]},"retained":false,"historicalAffected":[]},{"revision":"7772abcd78734388ab9271941ff2d172","observedAt":"2026-10-27T13:11:58.28+00:00","statement":{"source":"nvd","id":"CVE-2026-50268","aliases":[],"title":"Steeltoe is an open source project that provides a collection of libraries that helps users build cloud-native applications. In Steeltoe.Configuration.Encryption 4.0.0 through 4.1.0, configuring `encrypt:rsa:algorithm=OAEP` does not enable …","description":"Steeltoe is an open source project that provides a collection of libraries that helps users build cloud-native applications. In Steeltoe.Configuration.Encryption 4.0.0 through 4.1.0, configuring `encrypt:rsa:algorithm=OAEP` does not enable OAEP encryption. Due to an incorrect BouncyCastle transformation string, the `OAEP` setting selects PKCS#1 v1.5, which is the same algorithm as the `DEFAULT` setting. Steeltoe.Configuration.Encryption version 4.2.0 patches the issue.","state":0,"publishedAt":"2026-06-17T23:17:04.73+00:00","modifiedAt":"2026-10-26T11:10:00.157+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N","score":1.9,"severity":"LOW"}],"references":["https://github.com/SteeltoeOSS/Steeltoe/commit/6cfee5cccddf8f9a31de69b0ca5ccdd771b73e5b","https://github.com/SteeltoeOSS/security-advisories/security/advisories/GHSA-4j9m-h44m-2hv8"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-50268","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-256","CWE-327"],"productCriteria":[],"sourceDates":{"published":"2026-06-17T23:17:04.730","lastModified":"2026-10-26T11:10:00.157"},"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-2026-50268","identifiers":["CVE-2026-50268"]},"retained":false,"historicalAffected":[]},{"revision":"5d9d8610d8fd4d8daa5ac9bfbd6982b1","observedAt":"2026-10-23T16:01:25.029+00:00","statement":{"source":"osv","id":"GHSA-4j9m-h44m-2hv8","aliases":["CVE-2026-50268"],"title":"Steeltoe: OAEP setting silently selects PKCS#1 v1.5 padding","description":"### Summary\n\nConfiguring `encrypt:rsa:algorithm=OAEP` does not enable OAEP encryption. Due to an incorrect BouncyCastle transformation string, the `OAEP` setting selects PKCS#1 v1.5, which is the same algorithm as the `DEFAULT` setting.\n\n### Impact\n\nOperators who configure `encrypt:rsa:algorithm=OAEP` to obtain CCA2-secure padding receive PKCS#1 v1.5 instead. Currently, `Decrypt()` is called only against operator-controlled configuration data, so no exploitable path exists, but any future code path that exposes a decryption oracle would be Bleichenbacher-vulnerable despite the `OAEP` setting.\n\n### Migration note\n\nExisting `{cipher}` values produced under the broken `OAEP` setting were encrypted with PKCS#1 v1.5. The fix makes `OAEP` use actual OAEP padding, so those values will fail to decrypt after upgrading. Re-encrypt all affected `{cipher}` values after upgrading.","state":0,"publishedAt":"2026-07-02T20:32:21+00:00","modifiedAt":"2026-07-02T20:56:33.199322+00:00","affected":[{"ecosystem":"NuGet","name":"Steeltoe.Configuration.Encryption","ranges":[{"type":"ECOSYSTEM","events":[{"kind":"introduced","version":"4.0.0"},{"kind":"fixed","version":"4.2.0"}]}],"versions":["4.0.0","4.1.0"],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"LOW"}],"references":["https://github.com/SteeltoeOSS/security-advisories/security/advisories/GHSA-4j9m-h44m-2hv8","https://nvd.nist.gov/vuln/detail/CVE-2026-50268","https://github.com/SteeltoeOSS/Steeltoe/commit/6cfee5cccddf8f9a31de69b0ca5ccdd771b73e5b","https://github.com/SteeltoeOSS/security-advisories"],"sourceUrl":"https://github.com/advisories/GHSA-4j9m-h44m-2hv8","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-4j9m-h44m-2hv8","identifiers":["GHSA-4j9m-h44m-2hv8","CVE-2026-50268"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-07T20:07:23.8593986+00:00","complete":true,"records":1769,"lastAttemptAt":"2026-11-07T20:07:23.8593986+00:00","lastSuccessAt":"2026-11-07T20:07:24.014368+00:00","error":null,"lastVerifiedAt":"2026-11-07T20:07:24.014369+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-bb5c9d5a08063ef076042e33dd72a7d0ffa4c4487efdcf3106e29ba55ec2ad57-aac6631b84e101279eb6b1c3835f52bf7b26c50f4d25bc0fb35977235593f4a7","complete":true,"records":420943,"lastAttemptAt":"2026-11-07T20:07:23.1739993+00:00","lastSuccessAt":"2026-11-07T20:07:23.0712879+00:00","error":null,"lastVerifiedAt":"2026-11-07T20:07:23.1739993+00:00","snapshotPublishedAt":"2026-11-07T19:18:33+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-3cc7c8b73c604dac838ba06597dc7c46","complete":false,"records":13633,"lastAttemptAt":"2026-11-07T20:12:58.1403114+00:00","lastSuccessAt":"2026-11-07T20:12:58.2053833+00:00","error":null,"lastVerifiedAt":"2026-11-07T20:12:58.2053833+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. 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