CVE-2020-8659

CNCF Envoy through 1.13.0 may consume excessive amounts of memory when proxying HTTP/1.1 requests or responses with many small (i.e. 1 byte) chunks.

CVSS 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS

1.9% chance of exploitation in the next 30 days; higher than 79% of CVEs (scores of 2026-10-25)

CWE

CWE-770

Published

2020-03-04

Modified

2026-10-02

Record from

the NVD, synced 2026-10-19

Affected

• debian:debian_linux
• envoyproxy:envoy
• redhat:openshift_service_mesh

References

• https://access.redhat.com/errata/RHSA-2020:0734
• https://github.com/envoyproxy/envoy/security/advisories/GHSA-jwcm-4pwp-c2qv
• https://lists.debian.org/debian-lts-announce/2022/05/msg00025.html
• https://www.envoyproxy.io/docs/envoy/v1.13.1/intro/version_history
• https://access.redhat.com/errata/RHSA-2020:0734

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