{"apiVersion":"1.0","identifier":"CVE-2026-63178","description":"Onyx is an open-source AI platform. Prior to 4.3.0, Onyx Enterprise Edition-s PATCH /manage/admin/user-group/{user_group_id} and POST /manage/admin/user-group/{user_group_id}/add-users endpoints in ee/onyx/server/user_group/api.py call update_user_group and add_users_to_user_group in ee/onyx/db/user_group.py without enforcing _validate_curator_can_modify_group, allowing a curator to add accounts to arbitrary groups and obtain document access through get_acl_for_user and the OpenSearch access_control_list filter. This issue is fixed in version 4.3.0.","publishedAt":"2026-08-17T22:17:16","lastModifiedAt":"2026-08-18T16:18:12","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-63178","cvssScore":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N","epssProbability":0.00285,"riskScore":0.67,"affectedProduct":"Onyx","affectedVersions":"<4.3.0","vulnerabilityType":"Web app","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-63178","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-63178","en":"https://www.redsauce.net/en/cves/CVE-2026-63178","fr":"https://www.redsauce.net/fr/cves/CVE-2026-63178","pt":"https://www.redsauce.net/pt/cves/CVE-2026-63178","de":"https://www.redsauce.net/de/cves/CVE-2026-63178","sk":"https://www.redsauce.net/sk/cves/CVE-2026-63178","el":"https://www.redsauce.net/el/cves/CVE-2026-63178"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-63178"}}