Critical severity · published Aug 13, 2026
CVE-2026-73656
Trigger.dev: Cross-project deployment worker registration can modify another project's deployment state
9.9
CVSS
0.5%
EPSS
No
On KEV
Description
Trigger.dev is a platform for building and deploying fully managed AI agents and workflows. Prior to 4.5.6, POST /api/v1/deployments/:deploymentId/background-workers calls CreateDeploymentBackgroundWorkerServiceV4.call() in apps/webapp/app/v3/services/createDeploymentBackgroundWorkerV4.server.ts, where workerDeployment.findFirst() selects a deployment by friendlyId without an environmentId predicate. A caller with a valid API key for one project can submit another project's deployment identifier, link an attacker-owned background worker to the victim deployment, and move the victim deployment from BUILDING to DEPLOYING. This issue is fixed in version 4.5.6.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TR
trigger.dev · triggerdotdev
< 4.5.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-73656
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-73656
github.com
https://github.com/triggerdotdev/trigger.dev/commit/34b1a181c2a1d33a53ebab88f84b05f81fea4254
github.com
https://github.com/triggerdotdev/trigger.dev/pull/4199
github.com
https://github.com/triggerdotdev/trigger.dev/releases/tag/v4.5.2
github.com
https://github.com/triggerdotdev/trigger.dev/security/advisories/GHSA-j6vv-pq9h-f4wj
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