Medium severity5.3NVD Advisory· Published Mar 30, 2026· Updated Aug 19, 2026
CVE-2026-21711
CVE-2026-21711
Description
A flaw in Node.js Permission Model network enforcement leaves Unix Domain Socket (UDS) server operations without the required permission checks, while all comparable network paths correctly enforce them.
As a result, code running under --permission without --allow-net can create and expose local IPC endpoints, allowing communication with other processes on the same host outside of the intended network restriction boundary.
This vulnerability affects Node.js 25.x processes using the Permission Model where --allow-net is intentionally omitted to restrict network access. Note that --allow-net is currently an experimental feature.
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Affected products
19- osv-coords18 versionspkg:rpm/almalinux/nodejs24pkg:rpm/almalinux/nodejs24-develpkg:rpm/almalinux/nodejs24-full-i18npkg:rpm/almalinux/nodejs24-libspkg:rpm/almalinux/v8-13.6-develpkg:rpm/almalinux/nodejs-packagingpkg:rpm/almalinux/nodejs-packaging-bundlerpkg:rpm/almalinux/nodejspkg:rpm/almalinux/nodejs24-npmpkg:bitnami/node-minpkg:rpm/almalinux/nodejs-full-i18npkg:rpm/almalinux/nodejs-libspkg:bitnami/nodepkg:rpm/almalinux/nodejs-docspkg:rpm/almalinux/nodejs24-docspkg:rpm/almalinux/npmpkg:rpm/almalinux/nodejs-develpkg:rpm/almalinux/nodejs-nodemon
< 1:24.14.1-2.el10_1+ 17 more
- (no CPE)range: < 1:24.14.1-2.el10_1
- (no CPE)range: < 1:24.14.1-2.el10_1
- (no CPE)range: < 1:24.14.1-2.el10_1
- (no CPE)range: < 1:24.14.1-2.el10_1
- (no CPE)range: < 3:13.6.233.17-1.24.14.1.2.module_el9.7.0+222+ef1c61e1
- (no CPE)range: < 2021.06-6.module_el9.7.0+209+ecf6523e
- (no CPE)range: < 2021.06-6.module_el9.7.0+198+8bf605ba
- (no CPE)range: < 1:24.14.1-2.module_el9.7.0+222+ef1c61e1
- (no CPE)range: < 1:11.11.0-1.24.14.1.2.el10_1
- (no CPE)range: >= 25.0.0, < 25.8.2
- (no CPE)range: < 1:24.14.1-2.module_el9.7.0+222+ef1c61e1
- (no CPE)range: < 1:24.14.1-2.module_el9.7.0+222+ef1c61e1
- (no CPE)range: >= 25.0.0, < 25.8.2
- (no CPE)range: < 1:24.14.1-2.module_el9.7.0+222+ef1c61e1
- (no CPE)range: < 1:24.14.1-2.el10_1
- (no CPE)range: < 1:11.11.0-1.24.14.1.2.module_el9.7.0+222+ef1c61e1
- (no CPE)range: < 1:24.14.1-2.module_el9.7.0+222+ef1c61e1
- (no CPE)range: < 3.0.3-3.module_el9.7.0+209+ecf6523e
Patches
Vulnerability mechanics
References
1- nodejs.org/en/blog/vulnerability/march-2026-security-releasesnvdVendor Advisory
News mentions
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