CVE-2026-47416: PraisonAI Privilege Escalation Flaw

CVE-2026-47416 Overview

CVE-2026-47416 is a vertical privilege escalation vulnerability in PraisonAI Platform, the platform layer for the PraisonAI multi-agent teams system. The PATCH /workspaces/{workspace_id}/members/{user_id} endpoint enforces only baseline workspace membership through require_workspace_member(workspace_id) with min_role="member". The route never overrides this default, so any workspace member can call MemberService.update_role and set any target member's role to any value, including promoting themselves to owner. PraisonAI Platform version 0.1.4 patches the issue [CWE-269].

Critical Impact
Any authenticated workspace member can silently escalate themselves to owner or admin, seize control of the workspace, and modify or exfiltrate multi-agent workloads and data.

Affected Products

PraisonAI Platform versions prior to 0.1.4
PraisonAI multi-agent teams system deployments exposing the workspace members API
Downstream integrations that rely on PraisonAI Platform role-based access control

Discovery Timeline

2026-07-21 - CVE-2026-47416 published to NVD
2026-07-22 - Last updated in NVD database

Technical Details for CVE-2026-47416

Vulnerability Analysis

The vulnerability resides in the workspace member management route of PraisonAI Platform. The PATCH /workspaces/{workspace_id}/members/{user_id} endpoint depends on require_workspace_member(workspace_id) as its sole authorization gate. That dependency defaults to min_role="member" and the route does not override the parameter with a stricter role requirement.

Once the request passes the membership check, the handler invokes MemberService.update_role(workspace_id, user_id, body.role). The service writes the role value directly from the request body without validating the caller's privilege level. It does not verify that the caller holds owner or admin, that the new role is not higher than the caller's own role, or that the caller is not modifying their own record. This is a broken access control condition classified under [CWE-269] Improper Privilege Management.

Root Cause

The root cause is a missing authorization layer between authentication and state mutation. require_workspace_member proves only that the caller belongs to the workspace. The role update handler treats this as sufficient and delegates the mutation to MemberService.update_role, which is a pure data-layer function with no policy checks of its own.

Attack Vector

An attacker needs a valid session as any member of the target workspace. The attacker sends an authenticated PATCH request to /workspaces/{workspace_id}/members/{user_id} where {user_id} is either their own identifier or another member's identifier. The JSON body sets role to owner or admin. The server accepts the request and persists the escalated role.

The patch commit ef79b7a0561796ad9807f0f09538c25cc78d3619 introduces the fix in PraisonAI Platform 0.1.4. See the GitHub Security Advisory GHSA-c2m8-4gcg-v22g and the patch commit for the corrected authorization logic.

Detection Methods for CVE-2026-47416

Indicators of Compromise

HTTP PATCH requests to /workspaces/{workspace_id}/members/{user_id} originating from accounts that hold only member role at request time.
Audit log entries where a member record changes to owner or admin without a preceding action by an existing owner or admin.
Self-modifying role update events where the request user_id matches the authenticated caller's identifier.

Detection Strategies

Correlate application access logs with role-change events, flagging any promotion where the actor role at request start was below admin.
Alert on rapid sequences of workspace membership changes, invitations, or data exports that follow a role change.
Compare current workspace role assignments to a known-good baseline and surface unexplained deltas.

Monitoring Recommendations

Ingest PraisonAI Platform application and audit logs into a centralized store and retain them long enough to reconstruct role histories.
Monitor authentication events tied to newly promoted accounts for unusual client IPs, user agents, or session anomalies.
Track outbound API activity from workspaces where role changes occurred, focusing on bulk agent execution or data access.

How to Mitigate CVE-2026-47416

Immediate Actions Required

Upgrade PraisonAI Platform to version 0.1.4 or later on all instances that expose the workspace members API.
Audit every workspace for unexpected owner and admin assignments and revoke roles that cannot be attributed to a legitimate change.
Rotate API tokens and session credentials for accounts that may have been promoted or accessed by an escalated account.

Patch Information

PraisonAI Platform version 0.1.4 patches the issue. The fix is delivered in commit ef79b7a0561796ad9807f0f09538c25cc78d3619. Refer to the GitHub Security Advisory for the vendor-authored remediation guidance.

Workarounds

Restrict network access to the /workspaces/{workspace_id}/members/{user_id} endpoint at a reverse proxy or API gateway until the upgrade is applied.
Enforce an external authorization policy that rejects PATCH calls to the member role endpoint unless the caller carries an owner or admin claim.
Temporarily reduce workspace membership to trusted operators only, deferring invitations for lower-trust users until patched.

bash

# Example gateway rule: block role updates unless caller is admin/owner
# Pseudocode for an API gateway policy
if request.method == "PATCH" \
   and request.path matches "^/workspaces/[^/]+/members/[^/]+$" \
   and request.user.role not in ("owner", "admin"):
    deny 403 "insufficient_privilege"