PT-2026-111184

Published

2026-10-02

·

Updated

2026-10-02

Description by

CVSS 3.1
5.3
Medium
MetricsAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Summary

The POST handler for /realtime/v1/streams/:runId/:streamId has no authentication. Any entity that knows or guesses a run friendlyId can inject arbitrary data into its realtime stream.

Vulnerability Details

File: apps/webapp/app/routes/realtime.v1.streams.$runId.$streamId.ts
The action handler (line 17) has no auth wrapper. The code comment says: "Plain action for backwards compatibility with older clients that don't send auth headers."
The run lookup at line 29 uses where: { friendlyId: runId } with NO environment scoping (runtimeEnvironmentId is not checked), so production runs are accessible.
Run friendlyIds follow predictable patterns (e.g., run 1234abcd).

Steps to Reproduce

bash
# No authentication required
curl -X POST "http://localhost:8030/realtime/v1/streams/run KNOWN ID/stream 1"  -H "Content-Type: application/json"  -d '{"injected": "data"}'

Impact

Unauthenticated data injection into any run realtime stream. Cross-environment access (no scoping).
Exploitability
Fix
Impacts
Vendors
Affected products
Related identifiers
GHSA-59H8-W5Q6-MFMP
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