{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-33638", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-03-23T14:24:11.619Z", "datePublished": "2026-03-26T20:52:40.464Z", "dateUpdated": "2026-03-26T20:52:40.464Z"}, "containers": {"cna": {"title": "Ech0 authenticated user-list exposed data via public `/api/allusers` endpoint", "problemTypes": [{"descriptions": [{"cweId": "CWE-862", "lang": "en", "description": "CWE-862: Missing Authorization", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/lin-snow/Ech0/security/advisories/GHSA-m983-7426-5hrj", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/lin-snow/Ech0/security/advisories/GHSA-m983-7426-5hrj"}, {"name": "https://github.com/lin-snow/Ech0/commit/acbf1fd71011e6b9e1e6a911128056a19862f681", "tags": ["x_refsource_MISC"], "url": "https://github.com/lin-snow/Ech0/commit/acbf1fd71011e6b9e1e6a911128056a19862f681"}, {"name": "https://github.com/lin-snow/Ech0/releases/tag/v4.2.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/lin-snow/Ech0/releases/tag/v4.2.0"}], "affected": [{"vendor": "lin-snow", "product": "Ech0", "versions": [{"version": "< 4.2.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-03-26T20:52:40.464Z"}, "descriptions": [{"lang": "en", "value": "Ech0 is an open-source, self-hosted publishing platform for personal idea sharing. Prior to version 4.2.0, `GET /api/allusers` is mounted as a public endpoint and returns user records without authentication. This allows remote unauthenticated user enumeration and exposure of user profile metadata. A fix is available in v4.2.0."}], "source": {"advisory": "GHSA-m983-7426-5hrj", "discovery": "UNKNOWN"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Ech0 is an open-source, self-hosted publishing platform for personal idea sharing. Prior to version 4.2.0, `GET /api/allusers` is mounted as a public endpoint and returns user records without authentication. This allows remote unauthenticated user enumeration and exposure of user profile metadata. A fix is available in v4.2.0."}], "id": "CVE-2026-33638", "lastModified": "2026-03-26T21:17:07.467", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 1.4, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-03-26T21:17:07.467", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/lin-snow/Ech0/commit/acbf1fd71011e6b9e1e6a911128056a19862f681"}, {"source": "security-advisories@github.com", "url": "https://github.com/lin-snow/Ech0/releases/tag/v4.2.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/lin-snow/Ech0/security/advisories/GHSA-m983-7426-5hrj"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-862"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}