envoyproxy has 32 CVEs on record between 2019 and 2026. Disclosure cadence is accelerating: 21 in the last 90 days against 1 in the 90 before. The busiest recent month was September 2026 with 20. The median CVSS is 7.4 (high), with 1 rated critical. None have a confirmed exploitation report. The dominant weakness classes are CWE-476 (5) and CWE-20 (4). Most affected products: envoy (23), gateway (8), github.com/envoyproxy/ai-gateway (1).
CVEs per month
Last 12 months, by publish date
- Exploited share
- 0% vs 1% corpus
- Median CVSS
- 7.4
- Publish → KEV
- —
- Last 90 days
- 21 prev 1
Products
- envoy 23
- gateway 8
- github.com/envoyproxy/ai-gateway 1
Worst active — by depth score
CVE-2023-35945High· 7.5Envoy is a cloud-native high-performance edge/middle/service proxy54CVE-2026-73553High· 7.5Envoy is an open source edge and service proxy designed for cloud-native applications53CVE-2026-73550High· 7.5Envoy is an open source edge and service proxy designed for cloud-native applications53CVE-2026-73548High· 7.5Envoy is an open source edge and service proxy designed for cloud-native applications53CVE-2026-73546High· 7.4Envoy is an open source edge and service proxy designed for cloud-native applications53
envoyproxy vulnerabilities
CVEs affecting envoyproxy, newest first. Open any entry for full detail, references, and exploit status.
32 CVEsRSS
GHSA-953h-535j-jg2vMediumagent-router: MCP session resume does not verify the embedded anti-hijacking subject; default Helm seed makes session IDs forgeable
agent-router: MCP session resume does not verify the embedded anti-hijacking subject; default Helm seed makes session IDs forgeable
CVE-2026-73553High· 7.5PoCEnvoy is an open source edge and service proxy designed for cloud-native applications
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, When ignore_path_parameters_in_path_matching is enabled, Envoy's router strips the semicolon suffix befo…
CVE-2026-73551Medium· 5.3Envoy is an open source edge and service proxy designed for cloud-native applications
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy's URL normalization does not recognize dot and dotdot path segments when they carry semicolon para…
CVE-2026-73511Medium· 5.3Envoy is an open source edge and service proxy designed for cloud-native applications
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy normally matches the raw request path, while servlet backends such as Apache Tomcat strip semicolo…
CVE-2026-73546High· 7.4PoCEnvoy is an open source edge and service proxy designed for cloud-native applications
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy's /stats?format=html admin endpoint uses StatsHtmlRender, which sanitizes string statistic values …
CVE-2026-73512High· 7.5PoCEnvoy is an open source edge and service proxy designed for cloud-native applications
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy's HttpDatagramHandler caches the current RequestDecoder when Capsule Protocol is enabled. Stream r…
CVE-2026-73548High· 7.5PoCEnvoy is an open source edge and service proxy designed for cloud-native applications
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy forwards data for a configured non-WebSocket HTTP upgrade before the upstream accepts the upgrade.…
CVE-2026-50572Medium· 5.9Envoy is an open source edge and service proxy designed for cloud-native applications
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy's HTTP external-authorization client can retain a stale request callback after a request is reject…
CVE-2026-73552High· 7.5Envoy is an open source edge and service proxy designed for cloud-native applications
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy HTTP RBAC accepts RFC-valid opaque header bytes but evaluates safe_regex values with RE2's UTF-8 s…
CVE-2026-73513High· 7.5PoCEnvoy is an open source edge and service proxy designed for cloud-native applications
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy's optional oghttp2 upstream HTTP/2 codec accepts a response trailer HEADERS frame without END_STRE…
CVE-2026-73549Medium· 5.3Envoy is an open source edge and service proxy designed for cloud-native applications
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy's Utility::copyInternetAddressAndPort and QUIC client-address paths reconstruct scoped IPv6 addres…
CVE-2026-48521Medium· 5.9PoCEnvoy is an open source edge and service proxy designed for cloud-native applications
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy's ProdClusterManagerFactory::allocateConnPool dereferences transport_socket_options while selectin…
CVE-2026-73547High· 7.5Envoy is an open source edge and service proxy designed for cloud-native applications
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy's ext_authz filter assumes that a request contains a :path pseudoheader when applying query_parame…
CVE-2026-73550High· 7.5PoCEnvoy is an open source edge and service proxy designed for cloud-native applications
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy copies every decoded HTTP/2 Host header value before discarding it when :authority is already pres…
CVE-2026-53718Medium· 6.4Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway
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, an HTTPRoute can use an extension-managed custom backendRef to reference a backend resour…
CVE-2026-53716Medium· 6.5Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway
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, getFileFromGZ in internal/wasm/httpfetcher.go calls io.ReadAll on a gzip.Reader without l…
CVE-2026-53719Medium· 6.5Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway
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, translateSecurityPolicyForRoute in internal/gatewayapi/securitypolicy.go dereferences a n…
CVE-2026-53717Medium· 6.5Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway
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, internal/wasm/imagefetcher.go follows tenant-controlled EnvoyExtensionPolicy spec.wasm[].…
CVE-2026-53715Medium· 5.3Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway
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…
CVE-2026-53713Critical· 9.1Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway
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, to_absolute_normalized_path in internal/gatewayapi/luavalidator/security.lua does not col…
CVE-2026-53714High· 7.4Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway
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, the xDS gRPC server in GatewayNamespaceMode, configured through provider.kubernetes.deplo…
CVE-2026-47774High· 7.5Envoy is an open source edge and service proxy designed for cloud-native applications
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.35.11, 1.36.7, 1.37.3, and 1.38.1, a vulnerability in Envoy's HTTP/2 downstream request processing allows an unauthenticated remot…
CVE-2026-22771High· 8.8Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway
Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway. Prior to 1.5.7 and 1.6.2, EnvoyExtensionPolicy Lua scripts executed by Envoy proxy can be used to leak the proxy's …
CVE-2025-66220Medium· 5.0Envoy is a high-performance edge/middle/service proxy
Envoy is a high-performance edge/middle/service proxy. In 1.33.12, 1.34.10, 1.35.6, 1.36.2, and earlier, Envoy’s mTLS certificate matcher for match_typed_subject_alt_names may incorrectly treat certificates containing an embedded null by…
CVE-2025-64527Medium· 6.5Envoy is a high-performance edge/middle/service proxy
Envoy is a high-performance edge/middle/service proxy. In 1.33.12, 1.34.10, 1.35.6, 1.36.2, and earlier, Envoy crashes when JWT authentication is configured with the remote JWKS fetching, allow_missing_or_failed is enabled, multiple JWT …
CVE-2025-62504Medium· 6.5Envoy is an open source edge and service proxy
Envoy is an open source edge and service proxy. Envoy versions earlier than 1.36.2, 1.35.6, 1.34.10, and 1.33.12 contain a use-after-free vulnerability in the Lua filter. When a Lua script executing in the response phase rewrites a respo…
CVE-2025-62409High· 7.5Envoy is a cloud-native, open source edge and service proxy
Envoy is a cloud-native, open source edge and service proxy. Prior to 1.36.1, 1.35.5, 1.34.9, and 1.33.10, large requests and responses can potentially trigger TCP connection pool crashes due to flow control management in Envoy. It will …
CVE-2023-35945High· 7.5PoCEnvoy is a cloud-native high-performance edge/middle/service proxy
Envoy is a cloud-native high-performance edge/middle/service proxy. Envoy’s HTTP/2 codec may leak a header map and bookkeeping structures upon receiving `RST_STREAM` immediately followed by the `GOAWAY` frames from an upstream server. In…
CVE-2020-8664Medium· 5.3⚖ disputedCNCF Envoy through 1.13.0 has incorrect Access Control when using SDS with Combined Validation Context
CNCF Envoy through 1.13.0 has incorrect Access Control when using SDS with Combined Validation Context. Using the same secret (e.g. trusted CA) across many resources together with the combined validation context could lead to the “static…
CVE-2020-8661High· 7.5CNCF Envoy through 1.13.0 may consume excessive amounts of memory when responding internally to pipelined requests.
CNCF Envoy through 1.13.0 may consume excessive amounts of memory when responding internally to pipelined requests.