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Servers and applications

CVE-2019-0199

The HTTP/2 implementation in Apache Tomcat 9.0.0.M1 to 9.0.14 and 8.5.0 to 8.5.37 accepted streams with excessive numbers of SETTINGS frames and also permitted clients to keep streams open without reading/writing request/response data. By keeping streams open for requests that utilised the Servlet API's blocking I/O, clients were able to cause server-side threads to block eventually leading to…

Severity
High 7.5
Published
10 Apr 2019
Last changed
17 Jun 2026
Added to UpHeron
21 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
Apache TomcatServers and applications · cpe:a:apache:tomcat
  • From 9.0.1 up to 9.0.14
  • Version 9.0.0-milestone21
  • Version 9.0.0-milestone20
  • Version 9.0.0-milestone19
All 23 release lines
  • From 8.5.0 up to 8.5.37
  • Version 9.0.0-milestone1
  • Version 9.0.0-milestone2
  • Version 9.0.0-milestone3
  • Version 9.0.0-milestone4
  • Version 9.0.0-milestone5
  • Version 9.0.0-milestone6
  • Version 9.0.0-milestone7
  • Version 9.0.0-milestone8
  • Version 9.0.0-milestone9
  • Version 9.0.0-milestone10
  • Version 9.0.0-milestone11
  • Version 9.0.0-milestone12
  • Version 9.0.0-milestone13
  • Version 9.0.0-milestone14
  • Version 9.0.0-milestone15
  • Version 9.0.0-milestone16
  • Version 9.0.0-milestone17
  • Version 9.0.0-milestone18
  • Version 9.0.0-milestone19
  • Version 9.0.0-milestone20
  • Version 9.0.0-milestone21
  • From 9.0.1 up to 9.0.14

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-0199
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-0199