Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.26.0, 1.25.3, 1.24.4, 1.23.6, and 1.22.9, the OAuth filter assumes that a state query param is present on any response that looks like an OAuth redirect response. Sending it a request with the...
7.5CVSS
7.7AI Score
0.001EPSS
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, a malicious client is able to construct credentials with permanent validity in some specific scenarios. This is caused by the some rare scenarios in...
9.8CVSS
9.1AI Score
0.002EPSS
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, gRPC access loggers using listener's global scope can cause a use-after-free crash when the listener is drained. Versions 1.27.0, 1.26.4, 1.25.9, 1....
6.5CVSS
6.4AI Score
0.001EPSS
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, the CORS filter will segfault and crash Envoy when the origin header is removed and deleted between decodeHeadersand encodeHeaders. Versions 1.27.0,...
7.5CVSS
7.3AI Score
0.001EPSS
Envoy is an open source edge and service proxy designed for cloud-native applications. Envoy allows mixed-case schemes in HTTP/2, however, some internal scheme checks are case-sensitive. Prior to versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, this can lead to the rejection of requests with ...
8.2CVSS
5.4AI Score
0.001EPSS
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 nghttp2, cleanup of pending requests due to receipt of the GOAWAY...
7.5CVSS
7.3AI Score
0.001EPSS
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
Envoy is a high-performance edge/middle/service proxy. Envoy will crash when certain timeouts happen within the same interval. The crash occurs when the following are true: 1. hedge_on_per_try_timeout is enabled, 2. per_try_idle_timeout is enabled (it can only be done in configuration), 3. per-try-...
7.5CVSS
7.3AI Score
0.0005EPSS
Envoy is a high-performance edge/middle/service proxy. The regex expression is compiled for every request and can result in high CPU usage and increased request latency when multiple routes are configured with such matchers. This issue has been addressed in released 1.29.1, 1.28.1, 1.27.3, and 1.26...
5.3CVSS
5AI Score
0.0005EPSS
Envoy is a high-performance edge/middle/service proxy. External authentication can be bypassed by downstream connections. Downstream clients can force invalid gRPC requests to be sent to ext_authz, circumventing ext_authz checks when failure_mode_allow is set to true. This issue has been addressed ...
8.6CVSS
7.4AI Score
0.0005EPSS
Envoy is a high-performance edge/middle/service proxy. Envoy crashes in Proxy protocol when using an address type that isn’t supported by the OS. Envoy is susceptible to crashing on a host with IPv6 disabled and a listener config with proxy protocol enabled when it receives a request where the clie...
7.5CVSS
7.3AI Score
0.0005EPSS
Envoy is a cloud-native, open source edge and service proxy. A theoretical request smuggling vulnerability exists through Envoy if a server can be tricked into adding an upgrade header into a response. Per RFC https://www.rfc-editor.org/rfc/rfc7230#section-6.7 a server sends 101 when switching prot...
8.2CVSS
7AI Score
0.001EPSS
Envoy is a high-performance edge/middle/service proxy. When PPv2 is enabled both on a listener and subsequent cluster, the Envoy instance will segfault when attempting to craft the upstream PPv2 header. This occurs when the downstream request has a command type of LOCAL and does not have the protoc...
7.5CVSS
7.4AI Score
0.0005EPSS
Envoy is a cloud-native, open-source edge and service proxy. In versions 1.29.0 and 1.29.1, theEnvoy HTTP/2 protocol stack is vulnerable to the flood of CONTINUATION frames. Envoy's HTTP/2 codec does not reset a request when header map limits have been exceeded. This allows an attacker to send an s...
7.5CVSS
7.4AI Score
0.0004EPSS
Envoy is a cloud-native, open source edge and service proxy. The HTTP/2 protocol stack in Envoy versions prior to 1.29.3, 1.28.2, 1.27.4, and 1.26.8 are vulnerable to CPU exhaustion due to flood of CONTINUATION frames. Envoy's HTTP/2 codec allows the client to send an unlimited number of CONTINUATI...
5.3CVSS
5.5AI Score
0.0004EPSS
Envoy is a cloud-native, open source edge and service proxy. When an upstream TLS cluster is used with auto_sni enabled, a request containing a host/:authority header longer than 255 characters triggers an abnormal termination of Envoy process. Envoy does not gracefully handle an error when setting...
7.5CVSS
6.5AI Score
0.0004EPSS
Envoy is a cloud-native, open source edge and service proxy. A crash was observed in EnvoyQuicServerStream::OnInitialHeadersComplete() with following call stack. It is a use-after-free caused by QUICHE continuing push request headers after StopReading() being called on the stream. As after StopRead...
7.5CVSS
7.2AI Score
0.0005EPSS
Envoy is a cloud-native, open source edge and service proxy. There is a crash at QuicheDataReader::PeekVarInt62Length(). It is caused by integer underflow in the QuicStreamSequencerBuffer::PeekRegion() implementation.
7.5CVSS
7.2AI Score
0.0005EPSS
Envoy is a cloud-native, open source edge and service proxy. Envoyproxy with a Brotli filter can get into an endless loop during decompression of Brotli data with extra input.
7.5CVSS
7.2AI Score
0.0005EPSS
Envoy is a cloud-native, open source edge and service proxy. There is a use-after-free in HttpConnectionManager (HCM) with EnvoyQuicServerStream that can crash Envoy. An attacker can exploit this vulnerability by sending a request without FIN, then a RESET_STREAM frame, and then after receiving the...
5.9CVSS
7.2AI Score
0.0005EPSS
Envoy is a cloud-native, open source edge and service proxy. Due to how Envoy invoked the nlohmann JSON library, the library could throw an uncaught exception from downstream data if incomplete UTF-8 strings were serialized. The uncaught exception would cause Envoy to crash.
7.5CVSS
7.1AI Score
0.0005EPSS
Envoy is a cloud-native, open source edge and service proxy. Envoy exposed an out-of-memory (OOM) vector from the mirror response, since async HTTP client will buffer the response with an unbounded buffer.
6.5CVSS
7.3AI Score
0.0004EPSS
Envoy is a cloud-native, open source edge and service proxy. Prior to versions 1.30.4, 1.29.7, 1.28.5, and 1.27.7. Envoy references already freed memory when route hash policy is configured with cookie attributes. Note that this vulnerability has been fixed in the open as the effect would be immedi...
6.5CVSS
6.5AI Score
0.0004EPSS
Envoy is a cloud-native high-performance edge/middle/service proxy. A security vulnerability in Envoy allows external clients to manipulate Envoy headers, potentially leading to unauthorized access or other malicious actions within the mesh. This issue arises due to Envoy's default configuration of...
9.8CVSS
6.5AI Score
0.001EPSS
Envoy is a cloud-native high-performance edge/middle/service proxy. Envoy's 1.31 is using oghttp as the default HTTP/2 codec, and there are potential bugs around stream management in the codec. To resolve this Envoy will switch off the oghttp2 by default. The impact of this issue is that envoy will...
7.5CVSS
7.5AI Score
0.0005EPSS
Envoy is a cloud-native high-performance edge/middle/service proxy. A vulnerability has been identified in Envoy that allows malicious attackers to inject unexpected content into access logs. This is achieved by exploiting the lack of validation for the REQUESTED_SERVER_NAME field for access logger...
6.5CVSS
6.4AI Score
0.0005EPSS
Envoy is a cloud-native high-performance edge/middle/service proxy. Jwt filter will lead to an Envoy crash when clear route cache with remote JWKs. In the following case: 1. remote JWKs are used, which requires async header processing; 2. clear_route_cache is enabled on the provider; 3. header oper...
7.5CVSS
5.4AI Score
0.0005EPSS
Envoy is a cloud-native high-performance edge/middle/service proxy. Envoy will crash when the http async client is handling sendLocalReply under some circumstance, e.g., websocket upgrade, and requests mirroring. The http async client will crash during the sendLocalReply() in http async client, one...
7.5CVSS
6.4AI Score
0.0005EPSS
A flaw was found in Envoy. It is possible to modify or manipulate headers from external clients when pass-through routes are used for the ingress gateway. This issue could allow a malicious user to forge what is logged by Envoy as a requested path and cause the Envoy proxy to make requests to inter...
9.8CVSS
8.1AI Score
0.002EPSS