Vulnerability Report

CVE-2026-44577

Title: Image Optimization API Out-of-Memory

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2026-44577.

CWE Category CWE-770

Published Date May 13, 2026

Modified Date Jul 16, 2026

Exploit Status Not Found

Score 5.9 CVSS v3.1

Exploit Probability (EPSS)

0.72%

Vulnerability Summary

CVE-2026-44577: Next.js is a React framework for building full-stack web applications. From 10.0.0 to before 15.5.16 and 16.2.5, when self-hosting Next.js with the default image loader, the Image Optimization API fetches local images entirely into memory without enforcing a maximum size limit. An attacker could cause out-of-memory conditions by requesting large local assets from the /_next/image endpoint that match the images.localPatterns configuration (by default, all patterns are allowed). This vulnerability is fixed in 15.5.16 and 16.2.5.

Impacted Vendors

vercel 1

kanopi 1

Reference Links

https://github.com/vercel/next.js/security/advisories/GHSA-h64f-5h5j-jqjh

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

5.9

Attack Vector

NETWORK

Complexity

HIGH

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H