CVE-2026-82333 Affecting node-red-5 package, versions <5.0.5-r0
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-NODERED5-19660151
- published10 Sept 2026
- disclosed28 Aug 2026
Introduced: 28 Aug 2026
NewCVE-2026-82333 (opens in a new tab)How to fix?
Upgrade Minimos:latest node-red-5 to version 5.0.5-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream node-red-5 package and not the node-red-5 package as distributed by Minimos.
See How to fix? for Minimos:latest relevant fixed versions and status.
multer is a middleware for handling multipart/form-data in Node.js. A small multipart request with two specially crafted text field names can make multer's field parser synchronously iterate a maximum-length sparse array, blocking the event loop so the process cannot handle other requests. A large numeric array index in the first field allocates a maximum-length sparse array, and a second field with a non-numeric key then triggers a full-length iteration inside the append-field dependency. All versions before 2.3.0 are affected, and this is a remotely triggerable denial of service. multer 2.3.0 adds an opt-in fieldArrayIndexLimit option that rejects oversized array indexes. Upgrade to multer 2.3.0 and set limits.fieldArrayIndexLimit to the largest array index your application needs to remediate.
References
- https://www.cve.org/CVERecord?id=CVE-2026-82333
- https://github.com/advisories/GHSA-535w-7cp7-47q4
- https://osv.dev/vulnerability/MINI-65vv-vh5c-9v3j
- https://osv.dev/vulnerability/CVE-2026-82333
- https://cna.openjsf.org/security-advisories.html
- https://github.com/expressjs/multer/security/advisories/GHSA-535w-7cp7-47q4