Vulnerability · Published Jun 26, 2026 · Assigned by hackerone
CVE-2026-48930
Medium 5.6
In plain English
A medium-severity improper access control in node from nodejs. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 25% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.0)5.6Medium
Exploit odds (30 days)0.3%top 75.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC
Official description
A flaw in Node.js TLS hostname handling can cause Embedded-nul hostnames can lead to silent authority rebinding due to c-string truncation in resolver bindings. This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:10 | nodejs | 1:22.23.1-2.el10_2 | ALSA-2026:35842 |
| AlmaLinux:8 | nodejs | 1:22.23.1-1.module_el8.10.0+4231+1bf2f855 | ALSA-2026:41947 |
| AlmaLinux:8 | nodejs | 1:24.18.0-1.module_el8.10.0+4228+2938bc94 | ALSA-2026:39868 |
| AlmaLinux:9 | nodejs | 1:22.23.1-1.module_el9.8.0+276+8b329b47 | ALSA-2026:35892 |
| AlmaLinux:9 | nodejs | 1:24.18.0-1.module_el9.8.0+277+61fc613e | ALSA-2026:35891 |
| AlmaLinux:10 | nodejs-devel | 1:22.23.1-2.el10_2 | ALSA-2026:35842 |
| AlmaLinux:8 | nodejs-devel | 1:24.18.0-1.module_el8.10.0+4228+2938bc94 | ALSA-2026:39868 |
| AlmaLinux:8 | nodejs-devel | 1:22.23.1-1.module_el8.10.0+4231+1bf2f855 | ALSA-2026:41947 |
| AlmaLinux:9 | nodejs-devel | 1:22.23.1-1.module_el9.8.0+276+8b329b47 | ALSA-2026:35892 |
| AlmaLinux:9 | nodejs-devel | 1:24.18.0-1.module_el9.8.0+277+61fc613e | ALSA-2026:35891 |
| AlmaLinux:10 | nodejs-docs | 1:22.23.1-2.el10_2 | ALSA-2026:35842 |
| AlmaLinux:8 | nodejs-docs | 1:22.23.1-1.module_el8.10.0+4231+1bf2f855 | ALSA-2026:41947 |
| AlmaLinux:8 | nodejs-docs | 1:24.18.0-1.module_el8.10.0+4228+2938bc94 | ALSA-2026:39868 |
| AlmaLinux:9 | nodejs-docs | 1:24.18.0-1.module_el9.8.0+277+61fc613e | ALSA-2026:35891 |
| AlmaLinux:9 | nodejs-docs | 1:22.23.1-1.module_el9.8.0+276+8b329b47 | ALSA-2026:35892 |
| AlmaLinux:10 | nodejs-full-i18n | 1:22.23.1-2.el10_2 | ALSA-2026:35842 |
| AlmaLinux:8 | nodejs-full-i18n | 1:22.23.1-1.module_el8.10.0+4231+1bf2f855 | ALSA-2026:41947 |
| AlmaLinux:8 | nodejs-full-i18n | 1:24.18.0-1.module_el8.10.0+4228+2938bc94 | ALSA-2026:39868 |
| AlmaLinux:9 | nodejs-full-i18n | 1:22.23.1-1.module_el9.8.0+276+8b329b47 | ALSA-2026:35892 |
| AlmaLinux:9 | nodejs-full-i18n | 1:24.18.0-1.module_el9.8.0+277+61fc613e | ALSA-2026:35891 |
| AlmaLinux:10 | nodejs-libs | 1:22.23.1-2.el10_2 | ALSA-2026:35842 |
| AlmaLinux:8 | nodejs-libs | 1:24.18.0-1.module_el8.10.0+4228+2938bc94 | ALSA-2026:39868 |
| AlmaLinux:8 | nodejs-libs | 1:22.23.1-1.module_el8.10.0+4231+1bf2f855 | ALSA-2026:41947 |
| AlmaLinux:9 | nodejs-libs | 1:24.18.0-1.module_el9.8.0+277+61fc613e | ALSA-2026:35891 |
| AlmaLinux:9 | nodejs-libs | 1:22.23.1-1.module_el9.8.0+276+8b329b47 | ALSA-2026:35892 |
| AlmaLinux:8 | nodejs-nodemon | 3.0.1-1.module_el8.10.0+3956+47c9ee9f | ALSA-2026:41947 |
| AlmaLinux:8 | nodejs-nodemon | 3.0.3-1.module_el8.10.0+4061+f8ceeab9 | ALSA-2026:39868 |
| AlmaLinux:9 | nodejs-nodemon | 3.0.1-1.module_el9.7.0+208+fb06c0ab | ALSA-2026:35892 |
| AlmaLinux:9 | nodejs-nodemon | 3.0.3-3.module_el9.7.0+209+ecf6523e | ALSA-2026:35891 |
| AlmaLinux:10 | nodejs-npm | 1:10.9.8-1.22.23.1.2.el10_2 | ALSA-2026:35842 |
| AlmaLinux:8 | nodejs-packaging | 2021.06-6.module_el8.10.0+4158+e796f37f | ALSA-2026:41947 |
| AlmaLinux:8 | nodejs-packaging | 2021.06-6.module_el8.10.0+4086+70facd4a | ALSA-2026:39868 |
| AlmaLinux:9 | nodejs-packaging | 2021.06-6.module_el9.7.0+209+ecf6523e | ALSA-2026:35891 |
| AlmaLinux:9 | nodejs-packaging | 2021.06-6.module_el9.7.0+227+12323393 | ALSA-2026:35892 |
| AlmaLinux:8 | nodejs-packaging-bundler | 2021.06-6.module_el8.10.0+4086+70facd4a | ALSA-2026:39868 |
| AlmaLinux:8 | nodejs-packaging-bundler | 2021.06-6.module_el8.10.0+4158+e796f37f | ALSA-2026:41947 |
| AlmaLinux:9 | nodejs-packaging-bundler | 2021.06-6.module_el9.7.0+209+ecf6523e | ALSA-2026:35891 |
| AlmaLinux:9 | nodejs-packaging-bundler | 2021.06-6.module_el9.7.0+227+12323393 | ALSA-2026:35892 |
| AlmaLinux:10 | nodejs24 | 1:24.18.0-1.el10_2 | ALSA-2026:35841 |
| AlmaLinux:10 | nodejs24-devel | 1:24.18.0-1.el10_2 | ALSA-2026:35841 |
| AlmaLinux:10 | nodejs24-docs | 1:24.18.0-1.el10_2 | ALSA-2026:35841 |
| AlmaLinux:10 | nodejs24-full-i18n | 1:24.18.0-1.el10_2 | ALSA-2026:35841 |
| AlmaLinux:10 | nodejs24-libs | 1:24.18.0-1.el10_2 | ALSA-2026:35841 |
| AlmaLinux:10 | nodejs24-npm | 1:11.16.0-1.24.18.0.1.el10_2 | ALSA-2026:35841 |
| AlmaLinux:8 | npm | 1:11.16.0-1.24.18.0.1.module_el8.10.0+4228+2938bc94 | ALSA-2026:39868 |
| AlmaLinux:8 | npm | 1:10.9.8-1.22.23.1.1.module_el8.10.0+4231+1bf2f855 | ALSA-2026:41947 |
| AlmaLinux:9 | npm | 1:10.9.8-1.22.23.1.1.module_el9.8.0+276+8b329b47 | ALSA-2026:35892 |
| AlmaLinux:9 | npm | 1:11.16.0-1.24.18.0.1.module_el9.8.0+277+61fc613e | ALSA-2026:35891 |
| AlmaLinux:8 | v8-12.4-devel | 3:12.4.254.21-1.22.23.1.1.module_el8.10.0+4231+1bf2f855 | ALSA-2026:41947 |
| AlmaLinux:9 | v8-12.4-devel | 3:12.4.254.21-1.22.23.1.1.module_el9.8.0+276+8b329b47 | ALSA-2026:35892 |
| AlmaLinux:8 | v8-13.6-devel | 3:13.6.233.17-1.24.18.0.1.module_el8.10.0+4228+2938bc94 | ALSA-2026:39868 |
| AlmaLinux:9 | v8-13.6-devel | 3:13.6.233.17-1.24.18.0.1.module_el9.8.0+277+61fc613e | ALSA-2026:35891 |
| Alpine:v3.21 | nodejs | 22.23.0-r0 | ALPINE-CVE-2026-48930 |
| Alpine:v3.22 | nodejs | 22.23.0-r0 | ALPINE-CVE-2026-48930 |
| Alpine:v3.23 | nodejs | 24.17.0-r0 | ALPINE-CVE-2026-48930 |
| Alpine:v3.24 | nodejs | 24.17.0-r0 | ALPINE-CVE-2026-48930 |
| Debian:12 | nodejs | 18.20.4+dfsg-1~deb12u3 | DEBIAN-CVE-2026-48930 |
| Debian:13 | nodejs | 20.19.2+dfsg-1+deb13u3 | DEBIAN-CVE-2026-48930 |
| Debian:14 | nodejs | 24.17.0+dfsg+~cs24.13.2-1 | DEBIAN-CVE-2026-48930 |
| Rocky Linux:8 | nodejs | 1:24.18.0-1.module+el8.10.0+40252+a58646bc | RLSA-2026:39868 |
| Rocky Linux:8 | nodejs-nodemon | 0:3.0.1-1.module+el8.10.0+1935+d3cbe60f | RLSA-2026:41947 |
| Rocky Linux:8 | nodejs-nodemon | 0:3.0.3-1.module+el8.10.0+2084+ab509703 | RLSA-2026:39868 |
| Rocky Linux:8 | nodejs-nodemon | 0:3.0.1-1.module+el8.9.0+1760+903d54b9 | RLSA-2026:41947 |
| Rocky Linux:8 | nodejs-nodemon | 0:3.0.1-1.module+el8.10.0+1667+4a788d89 | RLSA-2026:41947 |
| Rocky Linux:8 | nodejs-nodemon | 0:3.0.1-1.module+el8.10.0+1824+532140ee | RLSA-2026:41947 |
| Rocky Linux:8 | nodejs-nodemon | 0:3.0.1-1.module+el8.10.0+1823+b5789597 | RLSA-2026:41947 |
| Rocky Linux:8 | nodejs-nodemon | 0:3.0.1-1.module+el8.10.0+1924+614dc87f | RLSA-2026:41947 |
| Rocky Linux:8 | nodejs-nodemon | 0:3.0.1-1.module+el8.10.0+1666+930e28e8 | RLSA-2026:41947 |
| Rocky Linux:8 | nodejs-nodemon | 0:3.0.1-1.module+el8.10.0+1988+437f3d23 | RLSA-2026:41947 |
| Rocky Linux:8 | nodejs-nodemon | 0:3.0.1-1.module+el8.10.0+1989+e60144d9 | RLSA-2026:41947 |
| Rocky Linux:9 | nodejs-nodemon | 0:3.0.3-3.module+el9.7.0+40025+0e0cf6b2 | RLSA-2026:35891 |
| Rocky Linux:9 | nodejs-nodemon | 0:3.0.1-1.module+el9.7.0+40153+4d595597 | RLSA-2026:35892 |
| Rocky Linux:9 | nodejs-nodemon | 0:3.0.1-1.module+el9.7.0+40165+d075e3f2 | RLSA-2026:35892 |
| Rocky Linux:9 | nodejs-nodemon | 0:3.0.1-1.module+el9.7.0+40022+9ecc286c | RLSA-2026:35892 |
| Rocky Linux:8 | nodejs-packaging | 0:2021.06-6.module+el8.10.0+40172+38f6fdd1 | RLSA-2026:39868 |
| Rocky Linux:8 | nodejs-packaging | 0:2021.06-6.module+el8.10.0+40048+6d99f608 | RLSA-2026:41947 |
| Rocky Linux:8 | nodejs-packaging | 0:2021.06-6.module+el8.10.0+40171+8fa9c325 | RLSA-2026:41947 |
| Rocky Linux:8 | nodejs-packaging | 0:2021.06-6.module+el8.10.0+40172+38f6fdd1 | RLSA-2026:41947 |
| Rocky Linux:8 | nodejs-packaging | 0:2021.06-6.module+el8.10.0+40048+6d99f608 | RLSA-2026:39868 |
| Rocky Linux:8 | nodejs-packaging | 0:2021.06-6.module+el8.10.0+40171+8fa9c325 | RLSA-2026:39868 |
| Rocky Linux:9 | nodejs-packaging | 0:2021.06-6.module+el9.7.0+40052+e32ea525 | RLSA-2026:35892 |
| Rocky Linux:9 | nodejs-packaging | 0:2021.06-6.module+el9.7.0+40165+d075e3f2 | RLSA-2026:35891 |
| Rocky Linux:9 | nodejs-packaging | 0:2021.06-6.module+el9.7.0+40052+e32ea525 | RLSA-2026:35891 |
| Rocky Linux:9 | nodejs-packaging | 0:2021.06-6.module+el9.7.0+40153+4d595597 | RLSA-2026:35892 |
| Rocky Linux:9 | nodejs-packaging | 0:2021.06-6.module+el9.7.0+40165+d075e3f2 | RLSA-2026:35892 |
| Rocky Linux:9 | nodejs-packaging | 0:2021.06-6.module+el9.7.0+40153+4d595597 | RLSA-2026:35891 |
| Rocky Linux:10 | nodejs22 | 1:22.23.1-2.el10_2 | RLSA-2026:35842 |
| Rocky Linux:10 | nodejs24 | 1:24.18.0-1.el10_2 | RLSA-2026:35841 |
| Ubuntu:24.04:LTS | nodejs | no fix listed | UBUNTU-CVE-2026-48930 |
| Ubuntu:25.10 | nodejs | no fix listed | UBUNTU-CVE-2026-48930 |
| Ubuntu:26.04:LTS | nodejs | no fix listed | UBUNTU-CVE-2026-48930 |
| Ubuntu:26.10 | nodejs | no fix listed | UBUNTU-CVE-2026-48930 |
Affected products (as reported)
Weakness: CWE-284 · Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L