CVE-2026-44576
Analyzed
Analyzed - Analysis Complete
BaseFortify
Publication date: 2026-05-13
Last updated on: 2026-05-14
Assigner: GitHub, Inc.
Description
Description
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.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| vercel | next.js | From 14.2.0 (inc) to 15.5.16 (exc) |
| vercel | next.js | From 16.0.0 (inc) to 16.2.5 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-436 | Product A handles inputs or steps differently than Product B, which causes A to perform incorrect actions based on its perception of B's state. |
Attack-Flow Graph
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