MervinPraison PraisonAI up to 0.1.3 Workspace require_workspace_member workspace_id comparison

Summaryinfo

A vulnerability labeled as critical has been found in MervinPraison PraisonAI up to 0.1.3. This issue affects the function require_workspace_member of the component Workspace. Such manipulation of the argument workspace_id leads to comparison. This vulnerability is listed as CVE-2026-47407. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in MervinPraison PraisonAI up to 0.1.3. It has been rated as critical. Affected by this issue is the function require_workspace_member of the component Workspace. The manipulation of the argument workspace_id with an unknown input leads to a comparison vulnerability. Using CWE to declare the problem leads to CWE-697. The product compares two entities in a security-relevant context, but the comparison is incorrect, which may lead to resultant weaknesses. Impacted is confidentiality, integrity, and availability. CVE summarizes:

PraisonAI Platform is the platform layer for the PraisonAI multi-agent teams system. Prior to version 0.1.4, the Platform server exposes resources under `/api/v1/workspaces/{workspace_id}/...` and protects them with a `require_workspace_member(workspace_id)` FastAPI dependency. The dependency only checks that the caller is a member of the workspace_id in the URL prefix. The route handlers then look up the inner resource (`agent_id`, `issue_id`, `project_id`, `label_id`, `comment_id`, `dependency_id`) by primary key alone. The resource's own `workspace_id` is never compared to the URL's `workspace_id`. A user can therefore put their own workspace in the URL prefix and any other workspace's resource ID in the path. The auth check passes, since they really are a member of the prefix workspace. The service then returns the cross-tenant resource for read, update, or delete. There is a second bug in the member-management routes (`add_member`, `update_member_role`, `remove_member`, `update_workspace`, `delete_workspace`). Each one inherits the default `min_role="member"` from `require_workspace_member`. Any basic member can therefore promote themselves to admin or owner, demote or remove other members, and delete the workspace. The role hierarchy exists in the schema but is not enforced. Registration is open at `/api/v1/auth/register` with no email verification. The default server bind is `0.0.0.0:8000` (`python -m praisonai_platform`). One curl from any unauthenticated network position is enough to bootstrap into the system. PraisonAI Platform version 0.1.4 patches the issue.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-47407 since 05/19/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

Upgrading to version 0.1.4 eliminates this vulnerability.

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Productinfo

Vendor

• MervinPraison

Name

• PraisonAI

Version

• 0.1.0
• 0.1.1
• 0.1.2
• 0.1.3

Website

• Product: https://github.com/MervinPraison/PraisonAI/

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