VIR Vulnerability Intelligence Relay

CVE-2026-44575

high
Published 2026-05-13 · Modified 2026-05-14
CVSS v3
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v2
—
VIR risk
7.5

Description

Next.js has a Middleware / Proxy bypass in App Router applications via segment-prefetch routes

Predictions

Exploit likelihood
83%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: security-advisories@github.com — https://github.com/vercel/next.js/security/advisories/GHSA-267c-6grr-h53f

Package impact
EcosystemPackageVulnerableFixed
npm npmnext>=15.2.0,<15.5.1615.5.16
npm npmnext>=16.0.0,<16.2.516.2.5
npm NPMnext>= 16.0.0, < 16.2.516.2.5
npm NPMnext>= 15.2.0, < 15.5.1615.5.16

Application impact
VendorProductVersionsFixed
vercelnext.js{"startIncluding":"15.2.0","endExcluding":"15.5.16"}15.5.16

References

CWEs

CWE-288

Verify integrity in audit chain (admin only). AS-IS.