Medium severity6.1GHSA Advisory· Published May 13, 2026· Updated May 14, 2026
CVE-2026-44580
CVE-2026-44580
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
nextnpm | >= 13.0.0, < 15.5.16 | 15.5.16 |
nextnpm | >= 16.0.0, < 16.2.5 | 16.2.5 |
Affected products
4- osv-coords2 versions
< 0.51.0-r7+ 1 more
- (no CPE)range: < 0.51.0-r7
- (no CPE)range: >= 13.0.0, < 15.5.16
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-gx5p-jg67-6x7hghsaADVISORY
- github.com/vercel/next.js/security/advisories/GHSA-gx5p-jg67-6x7hnvdMitigationVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-44580ghsaADVISORY
- github.com/vercel/next.js/releases/tag/v15.5.16ghsaWEB
- github.com/vercel/next.js/releases/tag/v16.2.5ghsaWEB
News mentions
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