praisonai-platform: Missing authorization on member removal enables full workspace takeover by any user regardless of role

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

8.1 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

EPSS

• CVE-2026-47409: 0.34% estimated exploitation activity in the next 30 days; percentile 28.16 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

Summary Type: Authorization bypass enabling owner lockout. The DELETE /workspaces/{workspaceid}/members/{userid} endpoint is gated only by requireworkspacemember(workspaceid) (default minrole="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. File: src/praisonai-platform/praisonaiplatform/api/routes/workspaces.py, lines 130-140; services/memberservice.py, lines 71-78. Root cause: MemberService.remove(workspaceid, userid) performs the deletion without any caller-permission check or owner-protection logic. The route accepts the URL-supplied userid and dispatches it straight through. The role hierarchy (MemberService.hasrole) is implemented but never invoked here. A member-tier attacker can issue DELETE .../members/<owneruserid and immediately lock the legitimate owner out of the workspace. Affected Code File 1:…

Published by the source

29 May 2026, 22:57 UTC

Last modified by the source

13 Jul 2026, 16:43 UTC

Source last checked

26 Oct 2026, 13:41 UTC

1. Revision 2 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-w388-2392-px73

2. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-w388-2392-px73

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# Patch Next advisory brief: CVE-2026-47409

Advisory: praisonai-platform: Missing authorization on member removal enables full workspace takeover by any user regardless of role
IDs: CVE-2026-47409, GHSA-w388-2392-px73
Record: https://patchnext.com/advisories/cve-2026-47409 (revision 2, source checked 26 Oct 2026, 13:41 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 8.1)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: praisonai-platform 0.1.4. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI praisonai-platform: affected <= 0.1.2; fixed in 0.1.4

## Suggested inspection (read-only)
- `python -m pip show praisonai-platform`: prints the installed version. Run with the environment that serves production active.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on praisonai-platform.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-w388-2392-px73 (OSV record GHSA-w388-2392-px73 lists affected ranges: PyPI praisonai-platform >=0 <0.1.4 (fixed))
- Verified: https://github.com/advisories/GHSA-w388-2392-px73 (GitHub-reviewed advisory GHSA-w388-2392-px73 lists affected ranges: PyPI praisonai-platform >=0 <=0.1.2)

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