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CVE-2026-44576

5.4 medium SSVC exploitation: none Analyzed
NVD · CVE.org

Next.js is a React framework for building full-stack web applications. From 14.2.0 to before 15.5.16 and 16.2.5, applications using React Server Components can be vulnerable to cache poisoning when shared caches do not correctly partition response variants. Under affected conditions, an attacker can cause an RSC response to be served from the original URL and poison shared cache entries so later visitors receive component payloads instead of the expected HTML. This vulnerability is fixed in 15.5.16 and 16.2.5.

Fix

Patch, vendor advisory and mitigation references on NVD 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 5.4 · vercelNVD modified 2026-10-26 17:10

Affected (CPE criteria) 1

  • cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:*

References 1