CVE-2021-39204

MITRE NVD CVE.ORG Print: PDF PDF

Summary

CVECVE-2021-39204
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-09-09 22:15:00 UTC
Updated2021-09-27 18:30:00 UTC
DescriptionPomerium is an open source identity-aware access proxy. Envoy, which Pomerium is based on, incorrectly handles resetting of HTTP/2 streams with excessive complexity. This can lead to high CPU utilization when a large number of streams are reset. This can result in a DoS condition. Pomerium versions 0.14.8 and 0.15.1 contain an upgraded envoy binary with this vulnerability patched.

Risk And Classification

Problem Types: CWE-834

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Envoyproxy Envoy All All All All
Application Envoyproxy Envoy 1.19.0 All All All
Application Envoyproxy Envoy All All All All
Application Pomerium Pomerium All All All All
Application Pomerium Pomerium 0.15.0 All All All

References

ReferenceSourceLinkTags
Excessive CPU usage · Advisory · pomerium/pomerium · GitHub CONFIRM github.com
Security releases of Envoy 1.19.1, 1.18.4, 1.17.4, and 1.16.5 are now available MISC groups.google.com
Excessive CPU utilization when closing HTTP/2 streams · Advisory · envoyproxy/envoy · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 981065 Go (go) Security Update for github.com/pomerium/pomerium (GHSA-5wjf-62hw-q78r)
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report