# 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.

- **Severity:** High 8.1 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 21 Jul 2026
- **Updated:** 21 Jul 2026
- **Also known as:** GHSA-w388-2392-px73, PYSEC-2026-2938

## 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.

Weakness: CWE-862 (Missing Authorization), CWE-269 (Improper Privilege Management)

## Which versions are affected by CVE-2026-47409?

3 open source packages ship an affected version, including praisonai-platform.


| Package | Ecosystem | 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.

## Is CVE-2026-47409 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-47409 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-47409 and fix it if it is affected.

What it is: 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.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-47409 exists.

Affected packages and fixed versions:
- praisonai-platform (PyPI): affected all versions; fixed in 0.1.4
- praisonai-platform (PyPI): affected all versions; fixed in 0.1.4
- praisonai-platform (PyPI): affected all versions; fixed in 0.1.4

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-47409/ (Markdown: https://insights.sbomify.com/CVE-2026-47409/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-47409
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-47409
- OSV: https://osv.dev/vulnerability/CVE-2026-47409

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-47409/
Summaries are generated and may contain mistakes; the official description above is the record.