CVE-2026-56301 json
Nuxt - Arbitrary File Read via World-Connectable vite-node IPC Socket on Linux
published 5mo ago modified last mo. also EUVD-2026-38436 , GHSA-534h-c3cw-v3h9
- cvss
- 5.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 4%
- public exploits
- 0
- none known
Summary
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 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.
Patch / fix
- npm nuxt 3.21.7, 4.4.7
- Nuxt Nuxt 3.21.7, 4.4.7
- github.com/nuxt/nuxt@1f9f476 commit
- github.com/nuxt/nuxt@c293bf9 commit
Is CVE-2026-56301 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4mo ago
Exploit prediction
0.15% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 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 |
| CNA | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| GitHub | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| CNA | 4.0 | 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 |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | nuxt | >=4.0.0, <4.4.7 >=3.18.0, <3.21.7 |
4.4.7 3.21.7 |
Affected products
- Nuxt Nuxt
Classification
- Weakness
-
- CWE-276 Incorrect Default Permissions
References
-
github.com
/nuxt/nuxt/commit/1f9f4767a8725104da9bee872bb8d35246f25ae5
patch, web
-
github.com
/nuxt/nuxt/commit/c293bf9503ccb3bc9559bff4a1f592f99063c9ea
patch, web
-
github.com
/nuxt/nuxt/security/advisories/GHSA-534h-c3cw-v3h9
vendor-advisory, web, third-party-advisory, advisory
-
vulncheck.com
/advisories/nuxt-arbitrary-file-read-via-world-connectable-vite-node-ipc-socket-on-linux
third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-56301
advisory
-
github.com
/nuxt/nuxt
package
Sources
- CVE List CVE-2026-56301
- GitHub Advisory GHSA-534h-c3cw-v3h9
- NVD CVE-2026-56301
- Maintainer advisory GHSA-534h-c3cw-v3h9
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
The maintainers of nuxt/nuxt published their own advisory on GitHub. Reviewed sources take precedence over it.