CVE catalog

CVE-2026-45109

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

[CVE catalog]

Severity
High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
Source
[NVD] · [CVE record]
EPSS
0.60% · Oct 25, 2026

A flaw was found in Next.js. A remote unauthenticated attacker could exploit a bypass in a security fix when using middleware.ts with Turbopack. This vulnerability could lead to the disclosure of sensitive information. next.js: Next.js: Information disclosure via security fix bypass in middleware with Turbopack This Important information disclosure flaw in Next.js allows a remote unauthenticated attacker to bypass a prior security fix when applications utilize `middleware.ts` with Turbopack. This bypass undermines intended access controls, potentially leading to the exposure of sensitive information in affected Red Hat AMQ and Red Hat Trusted Artifact Signer deployments. The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Cpenext.jsNot reported15.5.18fixed
Cpenext.jsNot reported16.2.6fixed
Cpenext.jsNot reported16.2.6fixed

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Cpenext.jscpeNot reported15.5.18Not reportedNot reportedNot reported
Cpenext.jscpeNot reported16.2.6Not reportedNot reportedNot reported
Cpenext.jscpeNot reported16.2.6Not reportedNVD-CVE-2026-45109Not reported

OpenFactory catalog packages

No matching packages in this catalog.

Observed:

References