What’s Vulnerable › Vulnerabilities

CVE-2020-8659

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-03-04 · updated 2026-10-02
• Weakness: CWE-770

Description

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.

Affected products

• Debian Linux: 9.0
• envoyproxy envoy: through 1.13.0
• Red Hat OpenShift Service Mesh 2: 1.0

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
• 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

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