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MEDIUM severity

Trigger.dev: Unauthenticated Realtime Stream Data Injection via Run FriendlyIdGHSA-59h8-w5q6-mfmp

MEDIUMFix: triggerdotdev/trigger.dev#4250

GHSA-59h8-w5q6-mfmp is a medium-severity (CVSS 5.3) Missing Authentication vulnerability in trigger.dev. A fix is available for trigger.dev — see the affected versions and patch details below.

Also known asCVE-2026-114086
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Oct 22, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs19th percentile — riskier than 19% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

GHSA-59h8-w5q6-mfmp by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 394,803 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

1other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
trigger.devnpm
548Kdownloads / week

Description

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

# 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).

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmtrigger.devall versions4.5.5npm install trigger.dev@4.5.5

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for trigger.dev, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update trigger.dev to 4.5.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-59h8-w5q6-mfmp is resolved across your whole dependency graph.

  3. Workarounds

    Put an independent control in front of the weakness: restrict the affected endpoint or interface to trusted networks, require an additional authentication factor or proxy-level check, and invalidate existing sessions and credentials in case the flaw has already been used.

Frequently Asked Questions

## 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),
O3 Security · Impact-Aware SCA

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Trigger.dev: Unauthenticated Realtime Stream Data…