ZEIT Next.js 4 before 4.2.3 has Directory Traversal under the /_next request namespace.
https://github.com/masasron/vulnerability-research
https://github.com/advisories/GHSA-m34x-wgrh-g897
https://github.com/zeit/next.js/releases/tag/4.2.3
https://euvd.enisa.europa.eu/vulnerability/EUVD-2018-0160
Source: Mitre, NVD
Published: 2018-01-24
Updated: 2026-06-17
Base Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N
Severity: Medium
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Severity: High
EPSS: 0.0906