SEPTEMBER 19, 2026
Live Feed
Back to database
Case File

CVE-2026-63178

MEDIUM · CVSS 6.5 EPSS 0.29% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-17 · Last synced 2026-09-16

CyberRota Analysis

AI-Generated

Onyx Enterprise Edition versions prior to 4.3.0 are vulnerable due to insufficient access control in the user group management endpoints, allowing a curator to add users to any group, potentially granting unauthorized document access. This vulnerability could lead to unauthorized data exposure and manipulation within the platform. Organizations using Onyx should prioritize upgrading to version 4.3.0 to mitigate these risks.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-63178
Severity
MEDIUM
CVSS
6.5
EPSS
0.29%

Original NVD 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.