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High severity · published Aug 13, 2026
CVE-2026-73659
Trigger.dev: Cross-tenant object read/write via path traversal in packet presign API
8.1
CVSS
0.5%
EPSS
No
On KEV
Description
Trigger.dev is the open-source platform for building AI workflows in TypeScript. From 4.4.2 until 4.5.0, the packet presign routes in apps/webapp/app/routes/api.v1.packets.$.ts pass a caller-controlled filename through resolveStoreProtocolForPacketPresign to generatePresignedUrl and generatePresignedRequest in apps/webapp/app/v3/objectStore.server.ts, allowing .. traversal to escape the packets/<projectRef>/<env>/ object-store prefix and enabling a project API key to read or overwrite another organization's offloaded task payloads and outputs on multi-organization self-hosted instances. This issue is fixed in version 4.5.0.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TR
trigger.dev · triggerdotdev
>= 4.4.2, < 4.5.0 · source: vendor
Affected product
TR
trigger.dev
triggerdotdev
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-73659
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-73659
github.com
https://github.com/triggerdotdev/trigger.dev/commit/db4074df54db06b0656becf3f974345c90fa202e
github.com
https://github.com/triggerdotdev/trigger.dev/pull/3830
github.com
https://github.com/triggerdotdev/trigger.dev/releases/tag/v4.5.0
github.com
https://github.com/triggerdotdev/trigger.dev/security/advisories/GHSA-m3mf-37q7-8928
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