Description
A flaw in Node.js TLS hostname verification allows a certificate without a matching IP address SAN to authenticate a connection to an IPv4 address when the host is written with non-ASCII characters, such as fullwidth digits (`１２７.0.0.1`).
`tls.checkServerIdentity()` did not recognize such hosts as IP addresses, even though they normalize and resolve to a regular IPv4 address, and matched them against the certificate DNS names and Common Name instead. A certificate containing `DNS:127.0.0.1` or `DNS:*.0.0.1` could therefore be accepted for an IP endpoint it was not issued for. This is a regression introduced after the fix for CVE-2026-48618.
This vulnerability affects Node.js **26.x** and **24.x**.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| nodejs | node | 24.22.0 – ≤ 24.22.0, 26.12.0 – ≤ 26.12.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | nodejs | 24.22.1+dfsg+~cs24.19.2-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | nodejs | No fix yet | — |
| Ubuntu 26.04 LTS | nodejs | No fix yet | — |
| Ubuntu 24.04 LTS | nodejs | No fix yet | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | nodejs | No fix yet | — |
| Ubuntu Pro 20.04 LTS | nodejs | No fix yet | — |
| Ubuntu Pro 18.04 LTS | nodejs | No fix yet | — |
| Ubuntu Pro 16.04 LTS | nodejs | No fix yet | — |
| Ubuntu Pro 14.04 LTS | nodejs | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat Hardened Images 1 | nodejs22 +6 | 1:22.23.4-2.3.2.3.hum1 | RHSA-2026:87702 |
| Red Hat Hardened Images 1 | nodejs22-npm | 1:10.9.9-1.22.23.4.2.3.2.3.hum1 | RHSA-2026:87702 |
| Red Hat Hardened Images 1 | nodejs24 +5 | 1:24.22.1-3.hum1 | RHSA-2026:89206 |
| Red Hat Hardened Images 1 | nodejs24-npm | 2:11.19.1-1.24.22.1.3.hum1 | RHSA-2026:89206 |
| Red Hat Hardened Images 1 | nodejs24-npm-bin | 2:24.22.1-3.hum1 | RHSA-2026:89206 |
| Red Hat Hardened Images 1 | nodejs26 +6 | 1:26.12.1-0.1.hum1 | RHSA-2026:87703 |
| Red Hat Hardened Images 1 | nodejs26-npm | 1:11.20.0-1.26.12.1.0.1.hum1 | RHSA-2026:87703 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | nodejs24 +4 | 1:24.22.1-3.el10_2 | ALSA-2026:96088 |
| AlmaLinux 10 | nodejs24-npm | 2:11.19.1-1.24.22.1.3.el10_2 | ALSA-2026:96088 |
| AlmaLinux 9 | nodejs +4 | 1:24.22.1-3.module_el9.8.0+333+788f3075 | ALSA-2026:92378 |
| AlmaLinux 9 | nodejs-nodemon | 3.1.14-3.module_el9.8.0+292+f4eaf8b2 | ALSA-2026:92378 |
| AlmaLinux 9 | nodejs-packaging +1 | 2021.06-6.module_el9.7.0+209+ecf6523e | ALSA-2026:92378 |
| AlmaLinux 9 | npm | 1:11.19.1-1.24.22.1.3.module_el9.8.0+333+788f3075 | ALSA-2026:92378 |
| AlmaLinux 9 | v8-13.6-devel | 3:13.6.233.17-1.24.22.1.3.module_el9.8.0+333+788f3075 | ALSA-2026:92378 |
| AlmaLinux 8 | nodejs +4 | 1:24.22.1-1.module_el8.10.0+4331+0683c9c1 | ALSA-2026:92376 |
| AlmaLinux 8 | nodejs-nodemon | 3.1.14-2.module_el8.10.0+4250+09238ed4 | ALSA-2026:92376 |
| AlmaLinux 8 | nodejs-packaging +1 | 2021.06-6.module_el8.10.0+4086+70facd4a | ALSA-2026:92376 |
| AlmaLinux 8 | npm | 1:11.19.1-1.24.22.1.1.module_el8.10.0+4331+0683c9c1 | ALSA-2026:92376 |
| AlmaLinux 8 | v8-13.6-devel | 3:13.6.233.17-1.24.22.1.1.module_el8.10.0+4331+0683c9c1 | ALSA-2026:92376 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | nodejs24 | 1:24.22.1-3.el10_2 | RLSA-2026:96088 |
| Rocky Linux 9 | nodejs | 1:24.22.1-3.module+el9.8.0+40401+e24b8c95 | RLSA-2026:92378 |
| Rocky Linux 9 | nodejs-nodemon | 3.1.14-2.module+el9.8.0+40264+d9b257bb | RLSA-2026:98522, RLSA-2026:92378 |
| Rocky Linux 9 | nodejs-packaging | 2021.06-6.module+el9.7.0+40052+e32ea525 | RLSA-2026:98522, RLSA-2026:92378 |
| Rocky Linux 8 | nodejs-nodemon | 3.1.14-2.module+el8.10.0+40277+b1b3f89e | RLSA-2026:92376 |
| Rocky Linux 8 | nodejs-packaging | 2021.06-6.module+el8.10.0+40048+6d99f608 | RLSA-2026:92376 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | nodejs24 | 24.22.1-150700.15.21.1 | SUSE-SU-2026:5037-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | nodejs24 | 24.22.1-1.1 | openSUSE-SU-2026:12248-1 |
| openSUSE Leap 16.1 | nodejs24 | 24.22.1-160100.1.1 | openSUSE-SU-2026:22292-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | nodejs | 24.22.1-r0 | — |
| Alpine v3.24 | nodejs-current | 26.12.1-r0 | — |
| Alpine v3.23 | nodejs | 24.22.1-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | nodejs24 +4 | 1:24.22.1-1.amzn2023.0.1 | ALAS2023-2026-3330 |
| Amazon Linux 2023 | nodejs24-npm | 1:11.19.1-1.24.22.1.1.amzn2023.0.1 | ALAS2023-2026-3330 |
| Amazon Linux 2023 | v8-13.6-devel | 3:13.6.233.17-1.24.22.1.1.amzn2023.0.1 | ALAS2023-2026-3330 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | nodejs | 24.22.1-0 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | nodejs +4 | 1:24.21.0-1.0.1.module+el9.8.0+91091+c060d8b4 | ELSA-2026-92378 |
| Oracle Linux 9 | nodejs-nodemon | 3.1.14-3.module+el9.8.0+91009+5d530ccd | ELSA-2026-92378 |
| Oracle Linux 9 | nodejs-packaging +1 | 2021.06-6.module+el9.8.0+91009+5d530ccd | ELSA-2026-92378 |
| Oracle Linux 9 | npm | 1:11.19.0-1.24.21.0.1.0.1.module+el9.8.0+91091+c060d8b4 | ELSA-2026-92378 |
| Oracle Linux 9 | v8-13.6-devel | 3:13.6.233.17-1.24.21.0.1.0.1.module+el9.8.0+91091+c060d8b4 | ELSA-2026-92378 |
| Oracle Linux 8 | nodejs +4 | 1:24.21.0-1.0.1.module+el8.10.0+91090+8c7726c5 | ELSA-2026-92376 |
| Oracle Linux 8 | nodejs-nodemon | 3.1.14-2.module+el8.10.0+91054+4b1a799c | ELSA-2026-92376 |
| Oracle Linux 8 | nodejs-packaging +1 | 2021.06-6.module+el8.10.0+91054+4b1a799c | ELSA-2026-92376 |
| Oracle Linux 8 | npm | 1:11.19.0-1.24.21.0.1.0.1.module+el8.10.0+91090+8c7726c5 | ELSA-2026-92376 |
| Oracle Linux 8 | v8-13.6-devel | 3:13.6.233.17-1.24.21.0.1.0.1.module+el8.10.0+91090+8c7726c5 | ELSA-2026-92376 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | nodejs-24 | 24.22.1-r0 | — |
| Wolfi rolling | nodejs-25 | No fix yet | — |
| Wolfi rolling | nodejs-26 | 26.12.1-r0 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
-
CompleteTech-Security/node-cve-2026-105483-check ★ 0 · Oct 23, 2026
Offline Node.js evidence checker for CVE-2026-105483: TLS fullwidth-IP hostname validation bypass. Single-file Python; JSON/CSV/HTML reports; no exploit payloads.
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 17
- openSUSE-SU-2026:22292-1 Security update for nodejs24 SUSE / openSUSE Security Updates · Nov 14, 2026
- RHSA-2026:87703 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:87702 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- RHSA-2026:89206 Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update Red Hat Security Advisories (RHSA) · Nov 13, 2026
- WID-SEC-2026-4117 Node.js: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 12, 2026
- RLSA-2026:98522 Important: nodejs:26 security, bug fix, and enhancement update Rocky Linux Security Advisories · Nov 12, 2026
- RLSA-2026:96088 Important: nodejs24 security, bug fix, and enhancement update Rocky Linux Security Advisories · Nov 10, 2026
- ALSA-2026:96088 Important: nodejs24 security, bug fix, and enhancement update AlmaLinux Security Advisories · Nov 10, 2026
- SUSE-SU-2026:5037-1 Security update for nodejs24 SUSE / openSUSE Security Updates · Nov 3, 2026
- RLSA-2026:92378 Important: nodejs:24 security, bug fix, and enhancement update Rocky Linux Security Advisories · Oct 30, 2026
- RLSA-2026:92376 Important: nodejs:24 security, bug fix, and enhancement update Rocky Linux Security Advisories · Oct 30, 2026
- ELSA-2026-92378 Important: nodejs:24 security, bug fix, and enhancement update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Oct 30, 2026
- ELSA-2026-92376 Important: nodejs:24 security, bug fix, and enhancement update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Oct 30, 2026
- ALSA-2026:92378 Important: nodejs:24 security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:92376 Important: nodejs:24 security, bug fix, and enhancement update AlmaLinux Security Advisories · Oct 29, 2026
- ALAS2023-2026-3330 Important: nodejs24 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Oct 26, 2026
- openSUSE-SU-2026:12248-1 corepack24-24.22.1-1.1 on GA media SUSE / openSUSE Security Updates · Oct 24, 2026