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CVE-2026-44582

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CVE-2026-44582

Published: May 13, 2026

Modified: May 14, 2026

PUBLISHED

CVSS v3.1

3.7

LOW

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.

VendorProductVersions

vercel

next.js

affected
>= 13.4.6, < 15.5.16
affected
>= 16.0.0, < 16.2.5

Weaknesses (CWE)

CWE-328

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

References

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