# CVE-2026-73657 — triggerdotdev trigger.dev

> As of 2026-08-13, CVE-2026-73657 is a MEDIUM-severity vulnerability in triggerdotdev trigger.dev, CVSS v3.1 4.2, EPSS 0.1% (5.6th percentile). No Threadlinqs-tracked threat campaign has been attributed to CVE-2026-73657 as of 2026-08-13; the identifier is re-checked against the Threadlinqs threat corpus on every daily ingest.

**Last updated:** 2026-08-13

## What is CVE-2026-73657?

Trigger.dev is a platform for building and deploying fully managed AI agents and workflows. From 4.4.2 until 4.5.0-rc.4, `POST /api/v1/runs/:runParam/replay` in apps/webapp/app/routes/api.v1.runs.$runParam.replay.ts uses `prisma.taskRun.findUnique({ where: { friendlyId: runParam } })` without a runtimeEnvironmentId filter, then ReplayTaskRunService in apps/webapp/app/v3/services/replayTaskRun.server.ts replays the selected run in the victim environment. Any valid environment API key can therefore replay another tenant's run by friendlyId, consuming victim resources and repeating side effects; when `payloadType: "application/store"` is used, overrideExistingPayloadPacket() calls conditionallyImportPacket() on existingTaskRun.payload without an integrity check, so payload bytes overwritten through a separate object-store path-traversal vulnerability become attacker-controlled input to the victim task. This issue is fixed in version 4.5.0-rc.4.

The record classifies CVE-2026-73657 under weakness classes [CWE-22](https://intel.threadlinqs.com/cwe/CWE-22), [CWE-345](https://intel.threadlinqs.com/cwe/CWE-345), [CWE-639](https://intel.threadlinqs.com/cwe/CWE-639). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs low-privilege credentials, needs no user interaction. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 53 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 4.2 — MEDIUM (`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L`)
- **EPSS (FIRST):** 0.1% probability of exploitation in the next 30 days, higher than 5.6% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 2.3/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-08-13

## Is CVE-2026-73657 being exploited?

It currently carries a trending score of 31 in the Threadlinqs vulnerability feed.

## Affected products and versions

- **triggerdotdev**: trigger.dev

## How to fix CVE-2026-73657

No vendor patch reference has been recorded for CVE-2026-73657 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2026-73657

No threat campaign in the Threadlinqs corpus currently references CVE-2026-73657, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.

## Sources

Enriched from CVE.org, NVD, FIRST EPSS. Last verified by Threadlinqs on 2026-08-15. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [github.com](https://github.com/triggerdotdev/trigger.dev/security/advisories/GHSA-jx48-qfwm-xq67)

**Other references**

- [github.com](https://github.com/triggerdotdev/trigger.dev/pull/3756)
- [github.com (e1950778e2f2007e2d432b8f8a8fc89531c51f19)](https://github.com/triggerdotdev/trigger.dev/commit/e1950778e2f2007e2d432b8f8a8fc89531c51f19)
- [github.com (v4.5.0 rc)](https://github.com/triggerdotdev/trigger.dev/releases/tag/v4.5.0-rc.4)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-73657
Full detection coverage and IOCs for threats exploiting CVE-2026-73657 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp