CVE-2026-77063 Affecting node-red-4 package, versions <4.1.15-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-NODERED4-19660170
- published10 Sept 2026
- disclosed28 Aug 2026
Introduced: 28 Aug 2026
NewCVE-2026-77063 (opens in a new tab)How to fix?
Upgrade Minimos:latest node-red-4 to version 4.1.15-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream node-red-4 package and not the node-red-4 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. When an application uses an asynchronous fileFilter together with the fileSize limit, a race condition in multer's file stream handling can allow a file that exceeds the configured size limit to bypass the size-limit rejection. All versions before 2.3.0 are affected. The impact is limited because the underlying multipart parser still truncates the stream at the size limit, so this is a bypass of the limit rejection rather than uncontrolled resource consumption. The issue is fixed in multer 2.3.0. Upgrade to multer 2.3.0 to remediate.
References
- https://www.cve.org/CVERecord?id=CVE-2026-77063
- https://github.com/advisories/GHSA-qvfw-j98x-7q72
- https://osv.dev/vulnerability/MINI-5vr7-rrcj-32vh
- https://osv.dev/vulnerability/CVE-2026-77063
- https://cna.openjsf.org/security-advisories.html
- https://github.com/expressjs/multer/security/advisories/GHSA-qvfw-j98x-7q72