6.7

CVE-2026-106072: nodejs node Improper Certificate Validation

Awaiting analysis
AliasesDEBIAN-CVE-2026-106072UBUNTU-CVE-2026-106072CGA-4xmw-vcc9-m3wh
Published 23-10-2026Last modified 02-11-2026

Vulnerability summary

CVE-2026-106072 is a medium (CVSS 6.7) Improper Certificate Validation vulnerability in nodejs node. EPSS estimates a 0.62% chance of exploitation in the next 30 days, higher than 49.6% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.7, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.7/10
010
Medium · v3.0 (CVE.org)
EPSS score
0.62%
0%100%
Low · Change unavailable
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 3
SUSE-SU-2026:4957-1SUSE-SU-2026:5036-1SUSE-SU-2026:5037-1

Timeline

  1. 23-10-2026
    PublishedVulnerability first disclosed.
  2. 02-11-2026
    Last modifiedVulnerability information updated.

Description

A flaw in Node.js TLS hostname verification allows a certificate with only a DNS SAN to authenticate an IP endpoint when the client connects using a non-canonical IPv4 spelling, such as `0177.0.0.1`, `0x7f.0.0.1`, `2130706433` or `127.1`. `tls.checkServerIdentity()` did not classify these hosts as IP addresses, but normalized them to their canonical form and matched the result against the certificate DNS names. A certificate containing `DNS:127.0.0.1` and no `IP Address:127.0.0.1` SAN was therefore accepted, while the same certificate is correctly rejected for `127.0.0.1`. Exploitation requires a certificate with a numeric DNS SAN issued by a CA trusted by the client, and a platform resolver that accepts these spellings, such as glibc. This vulnerability affects Node.js **26.x**, **24.x**, and **22.x**.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.62%

Chance of exploitation in the next 30 days

Percentile

50%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

24-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard8 products
  • eco-nodejs-20.9.0All versions (No fix recorded)
  • eco-nodejs-22.16.0All versions (No fix recorded)
  • eco-nodejs-24.18.0All versions (No fix recorded)
  • nodejs-20All versions (No fix recorded)
  • nodejs-22< 22.23.4-r0
Wolfi5 products
  • nodejs-20All versions (No fix recorded)
  • nodejs-22< 22.23.4-r0
  • nodejs-24< 24.22.1-r0
  • nodejs-25All versions (No fix recorded)
  • nodejs-26< 26.12.1-r0
Alpine2 products
  • nodejs< 22.23.4-r0 | < 24.22.1-r0
  • nodejs-current< 26.12.1-r0
Debian1 product
  • nodejsAll versions (No fix recorded)
Nodejs1 product
  • node22.23.3 | 24.22.0 | 26.12.0
Ubuntu1 product
  • nodejsAll versions (No fix recorded)

6 vendors · 18 products

References

6 links