Envoy Gateway: Wasm cache ServeHTTP reads mappingPath2Cache without lock
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| envoyproxy | gateway | affected |
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| Envoyproxy | Gateway |
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| Source | ID | Title |
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Github GHSA |
GHSA-8fv2-88gg-hm7q | Envoy Gateway: Wasm cache ServeHTTP reads mappingPath2Cache without lock |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.467% probability within 30 days)
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| Metrics |
ssvc
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| First Time appeared |
Envoyproxy
Envoyproxy gateway |
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| Vendors & Products |
Envoyproxy
Envoyproxy gateway |
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| Description | 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. | |
| Title | Envoy Gateway: Wasm cache ServeHTTP reads mappingPath2Cache without lock | |
| Weaknesses | CWE-362 | |
| References |
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| Metrics |
cvssV3_1
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