What’s Vulnerable › Vulnerabilities

CVE-2026-114086: Trigger.dev before 4.5.5 Unauthenticated Realtime Stream Data Injection via Streams Endpoint

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-21 · updated 2026-10-28
• Weakness: CWE-306

Description

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.

Affected products

• Npm Trigger.Dev: before 4.5.5 — fixed in 4.5.5
• triggerdotdev trigger.dev: before 4.5.5 — fixed in 4.5.5

How to fix

Upgrade to a fixed version: Npm Trigger.Dev 4.5.5; triggerdotdev trigger.dev 4.5.5. Check the vendor advisory for mitigations.

References

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

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