Detections
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Next.js Framework 15.5.x < 15.5.21 / 16.x < 16.2.11 Image Optimization API DoS (GHSA-q8wf-6r8g-63ch)

medium Nessus Plugin ID 342580

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Synopsis

The Next.js Framework on the remote host is affected by a denial of service vulnerability.

Description

The Next.js Framework on the remote host is affected by a denial of service vulnerability:

 - When self-hosting Next.js with the default image loader, the Image Optimization API can optimize remotely hosted images if configured (not enabled by default). If those images contain malicious content, they can cause CPU exhaustion in /_next/image endpoints. Only config.images.remotePatterns is affected, and just the patterns in that array, whereas config.images.unoptimized: true, config.images.loader: 'custom', and Vercel are not impacted. (CVE-2026-64644)

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

Solution

Upgrade to Next.js Framework version 15.5.21 or 16.2.11 or later.

See Also

http://www.nessus.org/u?c5b31cc1

Plugin Details

Severity: Medium

ID: 342580

File Name: nextjs_framework_CVE-2026-64644.nasl

Version: 1.1

Type: Local

Agent: windows, macosx, unix

Family: Misc.

Published: 9/3/2026

Updated: 9/3/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

CVSS v2

Risk Factor: Medium

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2026-64644

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS v4

Risk Factor: Medium

Base Score: 6.3

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/a:vercel:next.js

Required KB Items: Host/nodejs/modules/enumerated

Patch Publication Date: 7/22/2026

Vulnerability Publication Date: 7/22/2026

Reference Information

CVE: CVE-2026-64644