All vulnerabilities

Servers and applications

CVE-2019-9513

Some HTTP/2 implementations are vulnerable to resource loops, potentially leading to a denial of service. The attacker creates multiple request streams and continually shuffles the priority of the streams in a way that causes substantial churn to the priority tree. This can consume excess CPU.

Severity
High 7.5
Published
13 Aug 2019
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Fixed in
1.16.1, 8.16.1, 10.16.3, 12.8.1
Sources
NVD

Affected software

SoftwareAffected versions
nginxServers and applications · cpe:a:f5:nginx
  • From 1.9.5 before 1.16.1
  • From 1.17.0 up to 1.17.2
Node.jsServers and applications · cpe:a:nodejs:node.js
  • From 8.0.0 up to 8.8.1
  • From 8.9.0 before 8.16.1
  • From 10.0.0 up to 10.12.0
  • From 10.13.0 before 10.16.3
  • From 12.0.0 before 12.8.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-9513
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-9513