Medium severity4.4NVD Advisory· Published Feb 22, 2022· Updated Jun 17, 2026
CVE-2022-23606
CVE-2022-23606
Description
Envoy is an open source edge and service proxy, designed for cloud-native applications. When a cluster is deleted via Cluster Discovery Service (CDS) all idle connections established to endpoints in that cluster are disconnected. A recursion was introduced in the procedure of disconnecting idle connections that can lead to stack exhaustion and abnormal process termination when a cluster has a large number of idle connections. This infinite recursion causes Envoy to crash. Users are advised to upgrade.
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Affected products
5>= 1.20.0, < 1.20.2+ 2 more
- (no CPE)range: >= 1.20.0, < 1.20.2
- cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*range: >=1.20.0,<1.20.2
- cpe:2.3:a:envoyproxy:envoy:1.21.0:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
2- github.com/envoyproxy/envoy/commit/4b6dd3b53cd5c6d4d4df378a2fc62c1707522b31nvdPatchThird Party Advisory
- github.com/envoyproxy/envoy/security/advisories/GHSA-9vp2-4cp7-vvxfnvdIssue TrackingThird Party Advisory
News mentions
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