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CVE-2026-44580

Next.js: Cross-site scripting in beforeInteractive scripts with untrusted input PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
vercel / next.jsaffected >= 13.0.0, < 15.5.16; affected >= 16.0.0, < 16.2.5

CWE

CWE-79

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.