CVE-2026-45109 | THREATINT

Description

Next.js is a React framework for building full-stack web applications. From 15.2.0 to before 15.5.18 and 16.2.6, it was found that the fix addressing CVE-2026-44575 did not apply to middleware.ts with Turbopack. This vulnerability is fixed in 15.5.18 and 16.2.6.

PUBLISHED Reserved 2026-05-08 | Published 2026-05-13 | Updated 2026-05-13 | Assigner GitHub_M

HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Problem types

CWE-288: Authentication Bypass Using an Alternate Path or Channel

Product status

>= 15.2.0, < 15.5.17

affected

>= 16.0.0, < 16.2.6

affected

References

github.com/...ext.js/security/advisories/GHSA-26hh-7cqf-hhc6

cve.org (CVE-2026-45109)

nvd.nist.gov (CVE-2026-45109)

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