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CVE-2026-105483VulnerabilityPublished Updated

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Affects Red HatSource GCVE Database

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Authoritative record:CVE-2026-105483· High 7.4

Not known to be exploited · CVSS 7.4 High.

Data as of 30 Oct 2026, 02:15 UTC

CVSS 3.0 base score
7.4High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (hackerone)CVSS 3.07.4
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
nodejsnodeAffected
  • >=24.22.0 <=24.22.0
  • >=26.12.0 <=26.12.0
Fixed in–

AI-suggested

Red Hat has released updated RPM packages for Node.js 24.x to address this vulnerability. Users should apply these updates as provided by Red Hat Hardened Images. Additionally, to mitigate risk, do not pass untrusted hostnames containing non-ASCII or fullwidth digits into TLS clients such as tls.connect, https.request, or fetch. Restrict outbound TLS connections to trusted destinations and segment services initiating TLS client connections from untrusted networks. Patch status is confirmed by the availability of updated RPMs from Red Hat.

Description

A vulnerability in the Node.js TLS stack allows improper normalization of hostnames containing fullwidth Unicode digits representing IPv4 addresses. This flaw can cause certificate hostname verification to accept a certificate that does not identify the intended peer, enabling potential TLS server impersonation. The issue affects Node.js 24.x and 26.x lines. Exploitation requires an attacker to influence the hostname used for the TLS connection and present a matching certificate, typically requiring privileged network positioning. The vulnerability impacts confidentiality and integrity but does not affect availability. Red Hat has released updated RPM packages to address this issue.

References

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