CVE-2026-77078 Affecting ghost package, versions <6.67.0-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.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-MINIMOSLATEST-GHOST-20343402
- published1 Oct 2026
- disclosed28 Aug 2026
Introduced: 28 Aug 2026
CVE-2026-77078 (opens in a new tab)How to fix?
Upgrade Minimos:latest ghost to version 6.67.0-r0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream ghost package and not the ghost 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 containing two specially crafted text field names can cause an uncaught RangeError (Invalid array length) that terminates the Node.js process. The first field uses a very large numeric array index to allocate a maximum-length sparse array, and a second field then pushes past that length, which throws inside the append-field dependency and is not caught by multer. All versions before 2.3.0 are affected, and the issue is a remotely triggerable denial of service. 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-2026-77078
- https://github.com/advisories/GHSA-wc9g-mqfw-jrwm
- https://osv.dev/vulnerability/MINI-pfgx-j48p-fmwh
- https://osv.dev/vulnerability/CVE-2026-77078
- https://cna.openjsf.org/security-advisories.html
- https://github.com/expressjs/multer/security/advisories/GHSA-wc9g-mqfw-jrwm