All vulnerabilities

Servers and applications

CVE-2021-22883

Node.js before 10.24.0, 12.21.0, 14.16.0, and 15.10.0 is vulnerable to a denial of service attack when too many connection attempts with an 'unknownProtocol' are established. This leads to a leak of file descriptors. If a file descriptor limit is configured on the system, then the server is unable to accept new connections and prevent the process also from opening, e.g. a file. If no file…

Severity
High 7.5
Published
3 Mar 2021
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
10.24.0, 12.21.0, 14.16.0, 15.10.0
Sources
NVD

Affected software

SoftwareAffected versions
Node.jsServers and applications · cpe:a:nodejs:node.js
  • From 10.0.0 before 10.24.0
  • From 12.0.0 before 12.21.0
  • From 14.0.0 before 14.16.0
  • From 15.0.0 before 15.10.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-22883
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-22883