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CVE-2022-23606

Status: ModifiedMedium (6.5)—

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.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Envoyproxy — Envoy

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2022-23606",
  "cveTags": [],
  "metrics": {
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          "options": [
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              "exploitation": "none"
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              "automatable": "no"
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          "version": "2.0.3",
          "timestamp": "2025-04-23T14:10:12.491502Z"
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    "cvssMetricV31": [
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        "type": "Secondary",
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  "published": "2022-02-22T23:15:11.337",
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      "url": "https://github.com/envoyproxy/envoy/commit/4b6dd3b53cd5c6d4d4df378a2fc62c1707522b31",
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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      "lang": "en",
      "value": "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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      "lang": "es",
      "value": "Envoy es un proxy de borde y servicio de código abierto, diseñado para aplicaciones nativas de la nube. Cuando se elimina un clúster a través del Servicio de Descubrimiento de Clústeres (CDS), se desconectan todas las conexiones inactivas establecidas con los puntos finales de ese clúster. Se introdujo una recursión en el procedimiento de desconexión de las conexiones inactivas que puede llevar al agotamiento de la pila y a la terminación anormal del proceso cuando un clúster tiene un gran número de conexiones inactivas. Esta recursión infinita hace que Envoy se bloquee. Se aconseja a los usuarios que actualicen"
    }
  ],
  "lastModified": "2026-06-17T04:30:28.007",
  "configurations": [
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