VIR Vulnerability Intelligence Relay

CVE-2026-44578

high
Published 2026-05-13 · Modified 2026-05-14
CVSS v3
8.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CVSS v2
—
VIR risk
8.6

Description

Next.js vulnerable to server-side request forgery in applications using WebSocket upgrades

Predictions

Exploit likelihood
91%
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-c4j6-fc7j-m34r

Package impact
EcosystemPackageVulnerableFixed
npm npmnext>=13.4.13,<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>= 13.4.13, < 15.5.1615.5.16

Application impact
VendorProductVersionsFixed
vercelnext.js{"startIncluding":"13.4.13","endExcluding":"15.5.16"}15.5.16

References

CWEs

CWE-918

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