{"id":"CVE-2026-59093","summary":"Weaviate \u003c 1.38.0 - Privilege Escalation via Unchecked Permissions in RBAC Role Assignment","details":"Weaviate before 1.38.0 does not verify that a principal performing an RBAC role assignment holds the permissions granted by the assigned role. The assignRoleToUser and assignRoleToGroup handlers (POST /authz/users/{id}/assign and /authz/groups/{id}/assign) authorize only that the caller may assign roles to the target user or group, not the permissions contained in the assigned roles, unlike role creation which enforces that a user can only create roles with permissions less than or equal to its own. A user holding only the delegated assign_and_revoke_users or assign_and_revoke_groups permission can assign the built-in admin role, or any high-privilege custom role, to itself or others, escalating to full administrative control of the database.","modified":"2026-07-09T04:00:55.303689463Z","published":"2026-07-02T19:40:22.778Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-266"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59093.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/59xxx/CVE-2026-59093.json"},{"type":"ADVISORY","url":"https://github.com/weaviate/weaviate/releases/tag/v1.38.0"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59093"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/weaviate-privilege-escalation-via-unchecked-permissions-in-rbac-role-assignment"},{"type":"REPORT","url":"https://github.com/weaviate/weaviate/pull/11493"},{"type":"FIX","url":"https://github.com/weaviate/weaviate/commit/2c75f6fb217631f7751c4b2a7d37a488cef13edb"},{"type":"PACKAGE","url":"https://github.com/weaviate/weaviate"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/weaviate/weaviate","events":[{"introduced":"0"},{"fixed":"73b12b15b4e086d15fdf8d252ec42e9d48298a9d"},{"fixed":"2c75f6fb217631f7751c4b2a7d37a488cef13edb"}],"database_specific":{"source":["CPE_RANGE","REFERENCES"],"cpe":"cpe:2.3:a:weaviate:weaviate:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"1.38.0"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-59093.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}]}