VULNERABILITY INTELLIGENCE
CVE-2021-39204
CVSS score7.5 HIGH
EPSS probability1.66%
CISA KEVNot currently listed
Published2021-09-09
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
Pomerium 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.
Weakness classification
- security-advisories@github.com: CWE-834
- nvd@nist.gov: CWE-834
Primary references
- security-advisories@github.com — Third Party Advisory
- security-advisories@github.com — Third Party Advisory
- security-advisories@github.com — Not Applicable
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Not Applicable