CVE-2026-47409 praisonai-platform: Missing authorization on member removal enables full workspace takeover by any user regardless of role
Any workspace member can remove other members, including the owner, due to missing role checks on the member deletion endpoint.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-47409?
CVE-2026-47409 is a high-severity missing authorization vulnerability in MervinPraison praisonai-platform, published on 21 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
PraisonAI Platform is the platform layer for the PraisonAI multi-agent teams system. Versions prior to 0.1.4 have an authorization bypass enabling owner lockout. The `DELETE /workspaces/{workspace_id}/members/{user_id}` endpoint is gated only by `require_workspace_member(workspace_id)` (default `min_role="member"`). Any member can remove any other member, including the workspace owner, using a single DELETE. There is no caller-role check, no target-role check, no "cannot remove last owner" guard. PraisonAI Platform version 0.1.4 patches the issue.
Which versions are affected by CVE-2026-47409?
3 open source packages ship an affected version, including praisonai-platform.
| Package | Affected | Fixed in |
|---|---|---|
praisonai-platform PyPI | All versions | 0.1.4 |
praisonai-platform PyPI | All versions | 0.1.4 |
praisonai-platform PyPI | All versions | 0.1.4 |
How do I fix CVE-2026-47409?
Upgrade praisonai-platform to 0.1.4 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-47409 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-47409 exists.
Sources
Also known as GHSA-w388-2392-px73, PYSEC-2026-2938.