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CVE-2026-44582

nvd nist
Published: May 13, 2026Modified: Jun 17, 2026

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3.7
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Exploitability: 2.2 / Impact: 1.4
Source: security-advisories@github.com (Secondary)

Description

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.

Affected (2)

Products: Vercel: Next.js
Vercel
1 product
Next.js
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Vercel
Next.js
From 13.4.6 to 15.5.16
Next.js
From 16.0.0 to 16.2.5

Related CWEs

CWE-328
Use of Weak Hash
The product uses an algorithm that produces a digest (output value) that does not meet security expectations for a hash function that allows an adversary to reasonably determine the original input (preimage attack), find another input that can produce the same hash (2nd preimage attack), or find multiple inputs that evaluate to the same hash (birthday attack).

References (1)

Source: security-advisories@github.com
MitigationVendor Advisory

Timeline

No history available yet.