CVE-2026-16732 Affecting trigger-dev package, versions <4.5.11-r1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-MINIMOSLATEST-TRIGGERDEV-19525037
- published4 Sept 2026
- disclosed18 Aug 2026
Introduced: 18 Aug 2026
CVE-2026-16732 (opens in a new tab)How to fix?
Upgrade Minimos:latest trigger-dev to version 4.5.11-r1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream trigger-dev package and not the trigger-dev package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
fastify is a fast and low overhead web framework for Node.js. Impact: the fix for CVE-2026-3635 added a guard on the forwarded-header reads used to derive the request host, protocol, hostname, ip, and ips values, checking the connecting address. That guard closes the IP, CIDR, and custom-function forms of trustProxy correctly, because those forms compile to predicates that inspect the connecting address. The hop-count form, where trustProxy is set to a number, compiles to a predicate that structurally ignores the address, so the guard is always satisfied for any hop count of one or more. Applications configured with a numeric trustProxy value, such as trustProxy set to 1 for a single reverse proxy, remain vulnerable: an attacker who can reach the Fastify origin directly, bypassing the front-facing proxy, can spoof the forwarded request fields exactly as in the unpatched version. The impact class matches the parent CVE-2026-3635, including host injection in generated URLs, HTTPS-enforcement bypass, secure-cookie and CSRF-origin bypass, and host-based routing and cache poisoning. Affected versions are fastify from 5.8.3 up to but not including 5.12.1. Patches: patched in fastify 5.12.1, where the numeric form of trustProxy is disabled at runtime and removed from the TypeScript type union. Workarounds: migrate to an IP, CIDR, or custom-function trustProxy value that validates the connecting address, and ensure the Fastify origin is only reachable through the trusted proxy chain.
References
- https://www.cve.org/CVERecord?id=CVE-2026-16732
- https://github.com/advisories/GHSA-3m5p-2c4r-xxw2
- https://osv.dev/vulnerability/MINI-72wj-4m78-5w2p
- https://osv.dev/vulnerability/CVE-2026-16732
- https://cna.openjsf.org/security-advisories.html
- https://github.com/fastify/fastify/security/advisories/GHSA-3m5p-2c4r-xxw2