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CVE-2026-44582

Status: AnalyzedLow (3.7)—

Next.js is a React framework for building full-stack web applications. From 13.4.6 to before 15.5.16 and 16.2.5, React Server Component responses can be vulnerable to cache poisoning in deployments that rely on shared caches with insufficient response partitioning. In affected conditions, collisions in the _rsc cache-busting value can allow an attacker to poison cache entries so users receive the wrong response variant for a given URL. This vulnerability is fixed in 15.5.16 and 16.2.5.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Vercel — Next.js

CWEs

References

Raw JSON (NVD)

Show
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  "id": "CVE-2026-44582",
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          "version": "2.0.3",
          "timestamp": "2026-05-14T18:23:45.992881Z"
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          "attackComplexity": "HIGH",
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  "lastModified": "2026-06-17T10:50:51.303",
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