Cyber Resilience

CVE-2026-56301

MediumPublic PoC

Published: 23 June 2026

Published
23 June 2026
Modified
25 June 2026
KEV Added
Patch
CVSS Score v4 6.8 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0010 1.2th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2026-56301 is a medium-severity Incorrect Default Permissions (CWE-276) vulnerability in Nuxt Nuxt. Its CVSS base score is 6.8 (Medium).

Operationally, ranked at the 1.2th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability details

Nuxt 4.0.0 before 4.4.7 and 3.18.0 before 3.21.7, when running the development server (nuxt dev) on Linux, binds the vite-node IPC server to an abstract-namespace Unix socket without permission restrictions, allowing local users to enumerate and connect. Unprivileged co-resident users…

more

can exploit the unprotected module request handler to read arbitrary files such as .env and SSH keys through the SSR plugin pipeline. Production builds are unaffected, as the IPC server runs only in development.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

Insufficient information to map techniques.
Confidence: LOW · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2026-56698Same product: Nuxt Nuxt
CVE-2025-27415Same product: Nuxt Nuxt
CVE-2024-42352Same product: Nuxt Nuxt
CVE-2024-34344Same product: Nuxt Nuxt
CVE-2026-56326Same product: Nuxt Nuxt
CVE-2026-56697Same product: Nuxt Nuxt
CVE-2026-56317Same product: Nuxt Nuxt
CVE-2023-3224Same product: Nuxt Nuxt
CVE-2024-23657Same product: Nuxt Nuxt
CVE-2026-53721Same product: Nuxt Nuxt

Affected Assets

nuxt
nuxt
3.18.0 — 3.21.7 · 4.0.0 — 4.4.7

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-276

Access control policy can specify and enforce secure default permissions for resources.

addresses: CWE-276

Guides setting of default permissions to the minimum required level.

addresses: CWE-276

Establishes requirements for appropriate default permissions on system resources as part of configuration management.

addresses: CWE-276

Baseline establishment and updates on install/upgrade ensure correct default permissions rather than insecure ones.

addresses: CWE-276

Requiring the most restrictive settings instead of defaults prevents incorrect default permissions on resources.

addresses: CWE-276

Requires documented processes that include setting and maintaining correct default permissions for configuration items.

addresses: CWE-276

Requires addressing secure default permissions in physical and environmental protection controls.

addresses: CWE-276

Tailoring explicitly overrides or scopes default permission assignments in the baseline to match the system's actual risk and operational needs.

Hardening callouts derived

Configuration rules from DISA STIG baselines that reduce the attack surface for weaknesses of the type cited by this CVE. Derived transitively via CVE→CWE→STIG over `controls_xwalks` (authoritative rows only).

Windows Server 2016 (2 rules)
  • V-224833 Permissions for program file directories must conform to minimum requirements. via CWE-276
  • V-224834 Permissions for the Windows installation directory must conform to minimum requirements. via CWE-276
Windows Server 2019 (2 rules)
  • V-205735 Windows Server 2019 permissions for program file directories must conform to minimum requirements. via CWE-276
  • V-205736 Windows Server 2019 permissions for the Windows installation directory must conform to minimum requirements. via CWE-276
Windows Server 2022 (2 rules)
  • V-254252 Windows Server 2022 permissions for program file directories must conform to minimum requirements. via CWE-276
  • V-254253 Windows Server 2022 permissions for the Windows installation directory must conform to minimum requirements. via CWE-276

References