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CVE-2026-53715 (GCVE-0-2026-53715)

Vulnerability from cvelistv5 – Published: 2026-09-14 20:14 – Updated: 2026-09-14 20:14
VLAI
Title
Envoy Gateway: Wasm cache ServeHTTP reads mappingPath2Cache without lock
Summary
Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway. Prior to 1.7.4 and 1.8.1, HTTPServer.ServeHTTP in internal/wasm/httpserver.go reads the plain mappingPath2Cache map without synchronization while HTTPServer.Get writes the same map during EnvoyExtensionPolicy translation. An attacker with pod-network access to unauthenticated port 18002 and tenant permission to churn policies with distinct Wasm URLs can flood GET requests until a per-request reader overlaps a writer. Go's concurrent map read and write detection invokes runtime.throw, which the net/http connection recovery cannot catch, terminating the controller process and causing a timing-dependent, cross-tenant control-plane denial of service until Kubernetes restarts the pod. This issue is fixed in versions 1.7.4 and 1.8.1.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
Impacted products
Vendor Product Version CPE status
envoyproxy gateway Affected: < 1.7.4
Affected: >= 1.8.0-rc.0, < 1.8.1
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{
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      "affected": [
        {
          "product": "gateway",
          "vendor": "envoyproxy",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.7.4"
            },
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            }
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      ],
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        }
      ],
      "metrics": [
        {
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
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            }
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      "providerMetadata": {
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          "url": "https://github.com/envoyproxy/gateway/commit/5a78db82b7cf4fc5bebbeda2c50952892038a464"
        },
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          "url": "https://github.com/envoyproxy/gateway/commit/b4737180c7e597490c6363075c565fa8cf24eead"
        },
        {
          "name": "https://github.com/envoyproxy/gateway/releases/tag/v1.7.4",
          "tags": [
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          ],
          "url": "https://github.com/envoyproxy/gateway/releases/tag/v1.7.4"
        },
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          "tags": [
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        }
      ],
      "source": {
        "advisory": "GHSA-8fv2-88gg-hm7q",
        "discovery": "UNKNOWN"
      },
      "title": "Envoy Gateway: Wasm cache ServeHTTP reads mappingPath2Cache without lock"
    }
  },
  "cveMetadata": {
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    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-53715",
    "datePublished": "2026-09-14T20:14:34.223Z",
    "dateReserved": "2026-06-10T16:43:31.241Z",
    "dateUpdated": "2026-09-14T20:14:34.223Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
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      "date": "2026-06-14",
      "epss": "0.0004",
      "percentile": "0.12576"
    },
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  }
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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