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VulnerabilityPublished Updated

CVE-2025-23085: NodeJS Node · Memory Leak

Affects NodeJS NodeSource GCVE Database

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Not known to be exploited · CVSS 5.3 Medium.

Data as of 30 Oct 2026, 00:33 UTC

CVSS 3.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (hackerone)CVSS 3.05.3
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 7 Feb 2025

  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
NodeJS NodeAffected
  • 4.0 – 23.0
20 affected builds
Fixed in–

AI-suggested

Until a fix is available, monitoring and limiting exposure to untrusted HTTP/2 clients may help reduce risk.

Description

CVE-2025-23085 is a medium severity memory leak vulnerability in the HTTP/2 server implementation of Node.js versions 18.x, 20.x, 22.x, and 23.x. The leak occurs when a remote peer abruptly closes the socket without sending a GOAWAY notification or when an invalid header causes connection termination by the peer. This flaw can lead to increased memory consumption and potential denial of service under certain conditions.

References

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