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Vulnerabilities
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CVE-2026-44580

Updated on 13 May 2026

Severity

6.1 Medium severity

Details

CVSS score
6.1
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CWE ID
Links
NISTCIRCLRHELUbuntu

Overview

About vulnerability

Next.js is a React framework for building full-stack web applications. From 13.0.0 to before 15.5.16 and 16.2.5, applications that use beforeInteractive scripts together with untrusted content can be vulnerable to cross-site scripting. In affected versions, serialized script content was not escaped safely before being embedded into the document, which could allow attacker-controlled input to break out of the intended script context and execute arbitrary JavaScript in a visitor’s browser. This vulnerability is fixed in 15.5.16 and 16.2.5.

Details

Affected product:
Next.js
Affected packages:
next-bundle-analyzer @ 13.5.11 (+48 more)
Next.js is a React framework for building full-stack web applications. From 13.0.0 to before 15.5.16 and 16.2.5, applications that use beforeInteractive scripts together with untrusted content can be vulnerable to cross-site scripting. In affected versions, serialized script content was not escaped safely before being embedded into the document, which could allow attacker-controlled input to break out of the intended script context and execute arbitrary JavaScript in a visitor’s browser. This vulnerability is fixed in 15.5.16 and 16.2.5.