CVE-2026-47417: praisonai-platform Comment Endpoints Accept Any Issue_id Vulnerability

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-cp4f-5m9r-5jc2",
  "modified" : "2026-06-01T14:19:33Z",
  "published" : "2026-06-01T14:19:33Z",
  "aliases" : [ "CVE-2026-47417" ],
  "summary" : "praisonai-platform: Comment endpoints accept any issue_id without workspace ownership check, cross-workspace comment read and post IDOR",
  "details" : "## Summary\n\n**Type:** Insecure Direct Object Reference. The comment endpoints (`POST /workspaces/{workspace_id}/issues/{issue_id}/comments` and `GET .../comments`) gate access on `require_workspace_member(workspace_id)` only, then call `CommentService.create(issue_id=issue_id, ...)` and `CommentService.list_for_issue(issue_id)` without verifying that `issue_id` belongs to `workspace_id`. A user who is a member of any workspace `W1` can read every comment on, and post new comments to, any issue in any other workspace `W2`.\n**File:** `src/praisonai-platform/praisonai_platform/api/routes/issues.py`, lines 143-171; `src/praisonai-platform/praisonai_platform/services/comment_service.py`, lines 19-53.\n**Root cause:** the route extracts `workspace_id` from the URL path and uses it solely for the membership gate, then passes the URL-supplied `issue_id` straight into `CommentService` without confirming that this issue exists in `workspace_id`. `CommentService.list_for_issue(issue_id)` runs `SELECT * FROM comments WHERE issue_id = :issue_id` with no workspace join. `CommentService.create(issue_id=issue_id, ...)` blindly writes a row with that `issue_id`. Both flows trust the URL-supplied issue ID as authoritative even though the membership check guarantees nothing about it.\n\n## Affected Code\n\n**File 1:** `src/praisonai-platform/praisonai_platform/api/routes/issues.py`, lines 143-171.\n\n```python\n@router.post(\"/{issue_id}/comments\", response_model=CommentResponse, status_code=status.HTTP_201_CREATED)\nasync def add_comment(\n    workspace_id: str,\n    issue_id: str,\n    body: CommentCreate,\n    user: AuthIdentity = Depends(require_workspace_member),         # only checks attacker is in workspace_id\n    session: AsyncSession = Depends(get_db),\n):\n    svc = CommentService(session)\n    comment = await svc.create(\n        issue_id=issue_id,                                          # <-- BUG: no validation that issue_id is in workspace_id\n        author_id=user.id,\n        content=body.content,\n        author_type=\"member\" if user.is_user else \"agent\",\n        parent_id=body.parent_id,\n    )\n    return CommentResponse.model_validate(comment)\n\n\n@router.get(\"/{issue_id}/comments\", response_model=List[CommentResponse])\nasync def list_comments(\n    workspace_id: str,\n    issue_id: str,\n    user: AuthIdentity = Depends(require_workspace_member),\n    session: AsyncSession = Depends(get_db),\n):\n    svc = CommentService(session)\n    comments = await svc.list_for_issue(issue_id)                   # <-- BUG: returns comments on any issue\n    return [CommentResponse.model_validate(c) for c in comments]\n```\n\n**File 2:** `src/praisonai-platform/praisonai_platform/services/comment_service.py`, lines 19-53.\n\n```python\nclass CommentService:\n    ...\n\n    async def create(\n        self,\n        issue_id: str,\n        author_id: str,\n        content: str,\n        author_type: str = \"member\",\n        comment_type: str = \"comment\",\n        parent_id: Optional[str] = None,\n    ) -> Comment:\n        comment = Comment(\n            issue_id=issue_id,                                      # <-- accepts any issue_id; no workspace verify\n            author_type=author_type,\n            author_id=author_id,\n            ...\n        )\n        self._session.add(comment)\n        await self._session.flush()\n        return comment\n\n    async def list_for_issue(self, issue_id: str) -> list[Comment]:\n        stmt = (\n            select(Comment)\n            .where(Comment.issue_id == issue_id)                    # <-- no JOIN against issues for workspace constraint\n            .order_by(Comment.created_at)\n        )\n        result = await self._session.execute(stmt)\n        return list(result.scalars().all())\n```\n\n**Why it's wrong:** the service trusts the caller-supplied `issue_id` as authoritative, but the route layer never verified that this issue belongs to the workspace the membership check covers. The standard FastAPI/SQLAlchemy fix is to first resolve the issue scoped to `workspace_id` (`Issue.id = :issue_id AND Issue.workspace_id = :workspace_id`) and only then proceed to comment operations. The `MemberService.get(workspace_id, user_id)` and `LabelService.list_for_workspace(workspace_id)` calls in the same codebase show the safe predicate; the comment service forgot to apply it.\n\n## Exploit Chain\n\n1. Attacker registers a workspace `W_attacker` (member) and harvests a target issue UUID `I_T` from any side channel: agent prompts that mention issues, the activity feed (`act_svc.log` records `issue_id`), webhook payloads, exported issue dumps, or simply by being a low-privilege observer of the attacker's own workspace whose internals reference foreign issue IDs (cross-workspace links, search across activity events). State: attacker holds `I_T`.\n2. Attacker authenticates and sends `GET /workspaces/W_attacker/issues/I_T/comments`. `require_workspace_member(W_attacker, attacker)` passes (attacker is a member of `W_attacker`). State: control flow enters `list_comments` with `workspace_id=W_attacker, issue_id=I_T`.\n3. `CommentService.list_for_issue(I_T)` runs `SELECT * FROM comments WHERE issue_id = 'I_T'` with no workspace constraint. Every comment on the foreign issue is returned: `content` (often the most sensitive part of an issue tracker — bug-report repro steps with secrets, customer PII, internal triage notes), `author_id`, `author_type`, `parent_id`, `created_at`. State: response body is the full comment thread of the foreign issue.\n4. Attacker repeats with `POST /workspaces/W_attacker/issues/I_T/comments` and a body of `{\"content\": \"<malicious>\"}`. `CommentService.create(issue_id=I_T, author_id=attacker, ...)` writes a row with the foreign issue's id and the attacker's `author_id`. State: a new comment authored by the attacker appears in the foreign workspace's issue thread, indistinguishable to the foreign workspace's UI from a legitimate cross-workspace mention. Used at scale this becomes a comment-spam / phishing primitive (links in the comment body) targeting another tenant's users.\n5. Final state: any attacker with one workspace-member token can exfiltrate every comment in the multi-tenant deployment given the issue UUIDs, and inject arbitrary comments under their own author identity into any foreign issue. The cross-workspace attribution gap is the worst part: the comment is recorded with the attacker's `author_id`, but the foreign workspace has no member with that id and the foreign workspace's audit logs show no event (the `act_svc.log` call in `add_comment` is omitted).\n\n## Security Impact\n\n**Severity:** sec-high. CVSS 7.6: network attack, low complexity, low privileges, no user interaction, scope unchanged, high confidentiality (full comment threads), high integrity (cross-workspace comment injection under attacker's own id), no availability claim.\n**Attacker capability:** read every comment on every issue in the multi-tenant deployment given the issue UUIDs; post arbitrary comments under the attacker's identity into any foreign issue, allowing comment-spam, phishing-link injection into another tenant's UI, or social-engineering attribution attacks (the foreign workspace's UI renders a comment whose author belongs to no member of that workspace).\n**Preconditions:** `praisonai-platform` is deployed multi-tenant; the attacker has any membership token; the target issue's UUID is known or guessable.\n**Differential:** source-inspection-verified end-to-end. The asymmetry between `CommentService.list_for_issue(issue_id)` (no workspace predicate) and `LabelService.list_for_workspace(workspace_id)` (correctly workspace-scoped) confirms the gap. With the suggested fix below, every comment route first resolves the issue scoped to `workspace_id`, returns 404 if the issue is foreign, and only then proceeds.\n\n## Suggested Fix\n\nResolve the issue scoped to `workspace_id` at the route layer before dispatching to `CommentService`. This both fixes the read and the write paths and avoids changing the `CommentService` signature.\n\n```diff\n--- a/src/praisonai-platform/praisonai_platform/api/routes/issues.py\n+++ b/src/praisonai-platform/praisonai_platform/api/routes/issues.py\n@@ -141,6 +141,11 @@ async def delete_issue(...):\n # ── Comments ─────────────────────────────────────────────────────────────────\n\n\n+async def _require_issue_in_workspace(session, workspace_id: str, issue_id: str):\n+    issue = await IssueService(session).get(workspace_id, issue_id)  # workspace-scoped get (see companion advisory)\n+    if issue is None:\n+        raise HTTPException(status_code=404, detail=\"Issue not found\")\n+\n @router.post(\"/{issue_id}/comments\", response_model=CommentResponse, status_code=status.HTTP_201_CREATED)\n async def add_comment(\n     workspace_id: str,\n@@ -149,6 +154,7 @@ async def add_comment(\n     user: AuthIdentity = Depends(require_workspace_member),\n     session: AsyncSession = Depends(get_db),\n ):\n+    await _require_issue_in_workspace(session, workspace_id, issue_id)\n     svc = CommentService(session)\n     comment = await svc.create(\n         issue_id=issue_id,\n@@ -167,5 +173,6 @@ async def list_comments(\n     user: AuthIdentity = Depends(require_workspace_member),\n     session: AsyncSession = Depends(get_db),\n ):\n+    await _require_issue_in_workspace(session, workspace_id, issue_id)\n     svc = CommentService(session)\n     comments = await svc.list_for_issue(issue_id)\n```\n\nCompanion advisories file the same workspace-scoping gap for `AgentService`, `IssueService`, `ProjectService`, and `LabelService`. Each is a separate exploitable IDOR.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "praisonai-platform"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.1.4"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-cp4f-5m9r-5jc2"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/MervinPraison/PraisonAI"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-639" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-06-01T14:19:33Z",
    "nvd_published_at" : null
  }
}