CVE-2026-114086

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

State: Published
Severity: 6.9 Medium
Published: Oct 21, 2026
Updated: Oct 28, 2026
Reserved: Oct 20, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N	VulnCheck
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N	VulnCheck

Weaknesses

CWE-306 Missing Authentication for Critical Function

Affected Products

Product	Versions
trigger.devtriggerdotdev	before 4.5.5Affected 4.5.5Not affected

References

GitHub Security Advisory (GHSA-59h8-w5q6-mfmp)vendor-advisory
VulnCheck Advisory: Trigger.dev before 4.5.5 Unauthenticated Realtime Stream Data Injection via Streams Endpointthird-party-advisory

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