Vulnerability · Published Jul 21, 2026 · Assigned by GitHub_M
CVE-2026-47413praisonai-platform: Any workspace member can add arbitrary user as owner via POST /workspaces/{id}/members
Critical 9.6
In plain English
A critical-severity privilege mismanagement in praisonai-platform from MervinPraison. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
PraisonAI Platform is the platform layer for the PraisonAI multi-agent teams system. Versions prior to 0.1.4 have aprivilege escalation / cross-tenant member injection. The `POST /workspaces/{workspace_id}/members` endpoint is gated only by `require_workspace_member(workspace_id)` (default `min_role="member"`) and forwards the request body's `user_id` and `role` straight into `MemberService.add(workspace_id, user_id, role)`, which has no caller-permission check. A user with the lowest workspace privilege can add any user (including a new attacker-controlled second account, or an existing account they want to grief) as owner of the workspace. PraisonAI Platform version 0.1.4 patches the issue.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | praisonai-platform | 0.1.4 | GHSA-8g2p-pqm3-fcfh |
| PyPI | praisonai-platform | 0.1.4 | PYSEC-2026-480 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| MervinPraison | praisonai-platform | < 0.1.4 |
Weakness: CWE-269, CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N