Medium severity · published Oct 21, 2026
CVE-2026-114086
Trigger.dev before 4.5.5 Unauthenticated Realtime Stream Data Injection via Streams Endpoint
5.3
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TR
trigger.dev · triggerdotdev
before 4.5.5 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-114086
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-114086
github.com
https://github.com/triggerdotdev/trigger.dev/security/advisories/GHSA-59h8-w5q6-mfmp
www.vulncheck.com
https://www.vulncheck.com/advisories/trigger-dev-before-4.5.5-unauthenticated-realtime-stream-data-injection-via-streams-endpoint
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