CVE-2026-114086

MEDIUM 5.3

Trigger.dev before 4.5.5 Unauthenticated Realtime Stream Data Injection via Streams Endpoint

CVSS Score

5.3

EPSS Score

0.0%

EPSS Percentile

0th

Trigger.dev before 4.5.5 contains a missing authentication vulnerability in the realtime streams POST handler that allows unauthenticated attackers to inject data into run streams. Attackers can send POST requests to /realtime/v1/streams/:runId/:streamId with a predictable run friendlyId to inject arbitrary data into any environment's realtime stream, including production.

CWE	CWE-306
Vendor	triggerdotdev
Product	trigger.dev
Published	Oct 21, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Affected Versions

triggerdotdev / trigger.dev

0 < 4.5.5

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/triggerdotdev/trigger.dev/security/advisories/GHSA-59h8-w5q6-mfmp vulncheck.com: https://www.vulncheck.com/advisories/trigger-dev-before-4.5.5-unauthenticated-realtime-stream-data-injection-via-streams-endpoint

Credits

🔍 sfwani 🔍 dodge1218 🔍 geo-chen 🔍 MatiasTilleriasLey