CVE catalog
CVE-2026-44580
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
- Severity
- Medium · CVSS 6.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.21% · Oct 25, 2026
A flaw was found in Next.js. A remote attacker could exploit this cross-site scripting (XSS) vulnerability by injecting untrusted content into `beforeInteractive` scripts. Due to improper escaping of serialized script content, this could allow the attacker to execute arbitrary JavaScript code in a visitor's browser, leading to information disclosure or unauthorized actions. next.js: Next.js: Cross-site scripting allows arbitrary code execution via untrusted script content This is a Moderate cross-site scripting (XSS) vulnerability affecting Next.js applications. The flaw occurs when applications employ `beforeInteractive` scripts with unsanitized, untrusted content, enabling remote attackers to execute arbitrary JavaScript. The requirement for this specific script strategy and attacker-controlled input limits the overall exposure in Red Hat deployments. The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | next.js | Not reported | 15.5.16 | fixed |
| Cpe | next.js | Not reported | 16.2.5 | fixed |
| Cpe | next.js | Not reported | 16.2.5 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | next.js | cpe | Not reported | 15.5.16 | Not reported | Not reported | Not reported |
| Cpe | next.js | cpe | Not reported | 16.2.5 | Not reported | Not reported | Not reported |
| Cpe | next.js | cpe | Not reported | 16.2.5 | Not reported | NVD-CVE-2026-44580 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://github.com/vercel/next.js/security/advisories/GHSA-gx5p-jg67-6x7h]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-44580]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44580.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1401.json]
[CERT-Bund public advisories] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [Red Hat security advisories and VEX]