The version of Next.js installed on the remote host is 12.0.0 prior to 15.5.21 or 16.0.0 prior to 16.2.11. It is, therefore, affected by multiple vulnerabilities:

- A Server-Side Request Forgery vulnerability in rewrites via an attacker-controlled destination hostname. (CVE-2026-64645)

- A Server-Side Request Forgery vulnerability in Server Actions on custom servers. This issue only affects versions 14.1.1 and later. (CVE-2026-64649)

- A Middleware / Proxy bypass in App Router applications using Turbopack and a single locale. This issue only affects versions 16.0.0 and later. (CVE-2026-64642)

- A denial of service vulnerability in App Router applications using Server Actions. This issue only affects versions 13.0.0 and later. (CVE-2026-64641)

- A denial of service vulnerability due to unbounded Server Action payloads in the Edge runtime. This issue only affects versions 13.0.0 and later. (CVE-2026-64646)

- A denial of service vulnerability in the Image Optimization API using SVGs. This issue only affects versions 15.5.0 and later. (CVE-2026-64644)

- A cache confusion of response bodies for requests with bodies. This issue only affects versions 13.0.0 and later. (CVE-2026-64648)

- A cache confusion of response bodies for requests with bodies containing invalid UTF-8 byte sequences. This issue only affects versions 13.0.0 and later. (CVE-2026-64647)

- An unauthenticated disclosure of internal Server Function endpoints. This issue only affects versions 13.0.0 and later. (CVE-2026-64643)

Note that the scanner has not attempted to exploit these issues but has instead relied only on application's self-reported version number.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - Next.js is a React framework for building full-stack web applications. In versions 14.1.1 through 15.5.20
    and 16.0.0 through 16.2.10, when a Server Action forwards or redirects a request, an attacker can cause
    the server to send that outbound request to a malicious host (Server-Side Request Forgery). This requires
    the attacker's request to control Host-associated headers. In some configurations, it's also possible to
    obtain internal values that weaken middleware/proxy authorization. Applications that use Server Actions
    are affected when the incoming host header is not fixed to a trusted value. This typically occurs on
    custom servers, or on deployments not behind a proxy that pins the host. Managed hosting pins the host
    upstream and is not affected; next start and standalone output do the same from version 14.2 onward. This
    issue has been fixed in versions 15.5.21 and 16.2.11. (CVE-2026-64649)

The Next.js Framework on the remote host is affected by a server-side request forgery vulnerability:

  - When a Server Action forwards or redirects a request, an attacker can cause the server to send that     outbound request to a malicious host (Server-Side Request Forgery). This requires the attacker's request     to control Host-associated headers. In some configurations, it is also possible to obtain internal values     that weaken middleware/proxy authorization. (CVE-2026-64649)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
115756	Next.js 12.0.0 < 15.5.21 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	11/6/2026	11/6/2026	high
115757	Next.js 16.0.x < 16.2.11 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	11/6/2026	11/6/2026	high
445132	SCA: security update for next (GHSA-89xv-2m56-2m9x)	Tenable Cloud Security	SCA Checks	7/23/2026	8/10/2026	high
455322	Echo: next: security update to 15.5.21	Tenable Cloud Security	Echo Local Security Checks	10/1/2026	10/5/2026	high
455322	Echo: next: security update to 15.5.21	Tenable Self-Hosted Container Security	Echo Local Security Checks	10/1/2026	10/5/2026	high
445132	SCA: security update for next (GHSA-89xv-2m56-2m9x)	Tenable Self-Hosted Container Security	SCA Checks	7/23/2026	8/10/2026	high
330088	Next.js Framework 14.1.1 < 15.5.21 / 16.x < 16.2.11 SSRF	Nessus	Misc.	7/27/2026	7/30/2026	high

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