PatchTheCEVCVE-2026-106069: A flaw in Node.js TLS hostname verification can cause a server certificate to be validated against a different
31
Routine
HIGH 7.4REMOTE
CVE-2026-106069 is a high-severity flaw (CVSS 7.4) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A flaw in Node.js TLS hostname verification can cause a server certificate to be validated against a different IP address than the one the client connected to, when the host is a non-canonical IPv4 literal with a leading zero, such as `0127.0.0.1`. `tls.checkServerIdentity()` normalizes the host following the WHATWG URL rules, which read a leading-zero octet as octal (`0127.0.0.1` becomes `87.0.0.1`), while the connection is made through the ope
Why this priority
- High severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.4 (High) |
| Attack vector | Network (remote) |
| Attack complexity | High |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | n/a |
| CISA exploited list | No |
| Weakness | CWE-295 |
| Published | 2026-10-23 |
| Last modified | 2026-10-23 |
Publisher (CNA): HackerOne
Timeline
- Published CVE record published
- Updated Record last modified
Exact fixes by distribution
Fedora 46 · gum · FIXED · 2.0.2-1.fc46 · FEDORA-2026-da0d6dd894 · source
sudo dnf upgrade --advisory=FEDORA-2026-da0d6dd894
Debian 12 · nodejs · NO FIX YET
Debian 13 · nodejs · NO FIX YET
Alpine 3.21 · nodejs · FIXED · nodejs-22.23.4-r0
apk add --upgrade nodejs
apk info -v nodejs
Alpine 3.22 · nodejs · FIXED · nodejs-22.23.4-r0
apk add --upgrade nodejs
apk info -v nodejs
Alpine 3.23 · nodejs · FIXED · nodejs-24.22.1-r0
apk add --upgrade nodejs
apk info -v nodejs
Alpine 3.24 · nodejs · FIXED · nodejs-24.22.1-r0
apk add --upgrade nodejs
apk info -v nodejs
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Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.