CVE-2026-64644
Description
A flaw was found in Next.js, a React framework. When self-hosting Next.js with the default image loader and configured to optimize remotely hosted images, a remote attacker could exploit the Image Optimization API. By providing malicious images, the attacker can cause CPU exhaustion, leading to a Denial of Service (DoS) in the /_next/image endpoints. This vulnerability specifically affects configurations using config.images.remotePatterns.
Statement
This is an Important denial of service vulnerability in Next.js applications. When self-hosting Next.js with the default image loader, the Image Optimization API can be exploited if the config.images.remotePatterns option is explicitly configured to optimize remotely hosted, malicious images. This configuration is not enabled by default in Red Hat supported products, limiting exposure to environments where this specific feature has been activated.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7.5 | 5.3 | N/A |
| Attack Vector | Network | Network | N/A |
| Attack Complexity | Low | Low | N/A |
| Privileges Required | None | None | N/A |
| User Interaction | None | None | N/A |
| Scope | Unchanged | Unchanged | N/A |
| Confidentiality | None | None | N/A |
| Integrity Impact | None | None | N/A |
| Availability Impact | High | Low | N/A |
Vector
Red Hat: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Resource Consumption (CPU); DoS: Resource Consumption (Memory); DoS: Resource Consumption (Other)
When allocating resources without limits, an attacker could prevent other systems, applications, or processes from accessing the same type of resource. It can be easy for an attacker to consume many resources by rapidly making many requests or causing larger resources to be used than is needed.
Frequently Asked Questions
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