{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-85990", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-09-04T19:17:36.245Z", "datePublished": "2026-10-13T16:15:09.529Z", "dateUpdated": "2026-10-16T22:08:17.288Z" }, "containers": { "cna": { "title": "Leantime: Any Authenticated User Can Self-Escalate to Admin via Unauthorized JSON-RPC Methods", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-269", "lang": "en", "description": "CWE-269: Improper Privilege Management", "type": "CWE" } ] }, { "descriptions": [ { "cweId": "CWE-862", "lang": "en", "description": "CWE-862: Missing Authorization", "type": "CWE" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" } } ], "references": [ { "name": "https://github.com/Leantime/leantime/security/advisories/GHSA-54mm-6729-r5wp", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/Leantime/leantime/security/advisories/GHSA-54mm-6729-r5wp" }, { "name": "https://github.com/Leantime/leantime/security/advisories/GHSA-54mm-6729-r5wp", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/Leantime/leantime/security/advisories/GHSA-54mm-6729-r5wp" }, { "name": "https://github.com/Leantime/leantime/pull/3583", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/Leantime/leantime/pull/3583" }, { "name": "https://github.com/Leantime/leantime/pull/3797", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/Leantime/leantime/pull/3797" }, { "name": "https://github.com/Leantime/leantime/commit/5605e5ee86bbd01acb85c6b5d8fb337faf8bcf02", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/Leantime/leantime/commit/5605e5ee86bbd01acb85c6b5d8fb337faf8bcf02" }, { "name": "https://github.com/Leantime/leantime/commit/7ebf7a9517e2aaa05ec15b8130ab1841a4bde43e", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/Leantime/leantime/commit/7ebf7a9517e2aaa05ec15b8130ab1841a4bde43e" }, { "name": "https://github.com/Leantime/leantime/releases/tag/v3.10.0", "tags": [ "x_refsource_MISC" ], "url": "https://github.com/Leantime/leantime/releases/tag/v3.10.0" } ], "affected": [ { "vendor": "Leantime", "product": "leantime", "versions": [ { "version": "< 3.10.0", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-13T16:15:09.529Z" }, "descriptions": [ { "lang": "en", "value": "Leantime is an open source project management system. Prior to 3.10.0, for the provisionally grouped account-creation and plugin-management surfaces, Leantime's JSON-RPC dispatcher in app/Domain/Api/Controllers/Jsonrpc.php exposes public API service methods, while PermissionEnforcer::enforce allows methods that lack a RequiresPermission attribute. A low-privilege authenticated user with an ordinary browser session can send the required X-Requested-With: XMLHttpRequest header and call leantime.rpc.api.api.createApiKeyWithProjects, which reaches Api::createApiKeyWithProjects, with an attacker-chosen role to create an interactive administrator account. The same missing per-method authorization exposes Plugins::installPlugin, Plugins::enablePlugin, Plugins::disablePlugin, and Plugins::removePlugin to ordinary authenticated users, permitting unauthorized plugin management. The complete provisionally grouped issue is fixed in version 3.10.0." } ], "source": { "advisory": "GHSA-54mm-6729-r5wp", "discovery": "UNKNOWN" } }, "adp": [ { "references": [ { "url": "https://github.com/Leantime/leantime/security/advisories/GHSA-54mm-6729-r5wp", "tags": [ "exploit" ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-10-16T22:07:42.946920Z", "id": "CVE-2026-85990", "options": [ { "Exploitation": "poc" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T22:08:17.288Z" } } ] } }