{"id":"CVE-2026-59093","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-59093","summary":"Weaviate < 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.","published":"2026-07-02T19:40:22.778Z","modified":"2026-08-12T03:51:11.996851074Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[],"fix":{"url":"https://github.com/weaviate/weaviate/commit/2c75f6fb217631f7751c4b2a7d37a488cef13edb","label":"weaviate/weaviate@2c75f6f"},"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"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:11.996851074Z"}}