CVE-2021-39204
7.5 HIGHPomerium is an open source identity-aware access proxy
Published: 2021-09-09 · Last updated: 2026-06-17
Severity and scoring
- CVSS
- 7.5 HIGH
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CWE
- CWE-834
Affected products
| Vendor | Product |
|---|---|
| envoyproxy | envoy, pomerium |
| pomerium | envoy, pomerium |
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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-39204
- [Other]https://github.com/envoyproxy/envoy/security/advisories/GHSA-3xh3-33v5-chcc
- [Other]https://github.com/pomerium/pomerium/security/advisories/GHSA-5wjf-62hw-q78r
- [Other]https://groups.google.com/g/envoy-announce/c/5xBpsEZZDfE/m/wD05NZBbAgAJ
- [Other]https://github.com/envoyproxy/envoy/security/advisories/GHSA-3xh3-33v5-chcc
- [Other]https://github.com/pomerium/pomerium/security/advisories/GHSA-5wjf-62hw-q78r
- [Other]https://groups.google.com/g/envoy-announce/c/5xBpsEZZDfE/m/wD05NZBbAgAJ
Related CVEs
Same vendor
- CVE-2021-39206 — Pomerium is an open source identity-aware access proxy (8.6 HIGH)
- CVE-2021-39162 — Pomerium is an open source identity-aware access proxy (8.6 HIGH)
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