What’s Vulnerable › Vulnerabilities

CVE-2026-73658: Trigger.dev: Cross-tenant object store read and write via URL path traversal

• Severity: high (CVSS 8.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-13 · updated 2026-09-08
• Weakness: CWE-20

Description

Trigger.dev is a platform for building and deploying fully managed AI agents and workflows. From 4.4.2 until 4.5.0-rc.5, Aws4FetchClient.buildUrl() and Aws4FetchClient.presign() in apps/webapp/app/v3/objectStoreClient.server.ts assign user-controlled packet keys to URL.pathname, while apps/webapp/app/routes/api.v1.packets.$.ts accepts params["*"] without rejecting dot segments and uses findResource: async () => 1 without per-resource ownership validation. WHATWG path normalization collapses .. segments before signing, allowing a caller with a valid environment API key to obtain presigned URLs for another tenant's object-store keys and read or overwrite task payloads. This issue is fixed in version 4.5.0-rc.5.

Affected products

• triggerdotdev trigger.dev: from 4.4.2, < 4.5.0-rc.5

References

• https://github.com/triggerdotdev/trigger.dev/commit/db4074df54db06b0656becf3f974345c90fa202e
• https://github.com/triggerdotdev/trigger.dev/pull/3830
• https://github.com/triggerdotdev/trigger.dev/releases/tag/v4.5.0-rc.5
• https://github.com/triggerdotdev/trigger.dev/security/advisories/GHSA-888c-px7m-736v
• https://github.com/triggerdotdev/trigger.dev/security/advisories/GHSA-888c-px7m-736v

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