CVE-2019-9513

CVE-2019-9513 (and related HTTP/2 CVEs) affect nginx and nghttp2. The issues enable denial of service via HTTP/2 resource loops and priority/window manipulation, causing high CPU/memory usage. nginx 1.16.x and nghttp2 are specifically named in advisories; remediation is upgrading to fixed package...

CVE-2019-9517

CVE-2019-9517 describes an attack against some HTTP/2 implementations where unconstrained internal data buffering can cause a denial of service. The vulnerability arises when an attacker floods a connection with a large number of requests for a large response object while manipulating HTTP/2 flow...

CVE-2019-9511

CVE-2019-9511 is an HTTP/2 denial-of-service issue observed in multiple products where an attacker manipulates HTTP/2 window size and stream prioritization to force queuing of data in 1-byte chunks, potentially exhausting CPU/memory. Connected advisories confirm affected components include nginx ...

CVE-2019-9516

CVE-2019-9516 is an HTTP/2 header leak vulnerability affecting nginx and several Linux distributions. The issue occurs when an attacker sends streams with 0-length header names and values (optionally Huffman encoded), causing nginx to allocate memory for headers that may be kept until the session...

CVE-2019-9514

CVE-2019-9514 corresponds to an HTTP/2 vulnerability where an attacker floods a peer by sending HEADERS frames, causing unbounded memory growth and potential DoS. Public details in connected advisories show affected stacks include Go HTTP/2 implementations and Go-based tools, with remediation via...

CVE-2019-9512

CVE-2019-9512 is a HTTP/2 denial-of-service issue caused by ping floods that can trigger unbounded memory/CPU growth. Connected advisories confirm concrete remediation paths across environments: for Go-based HTTP/2 stacks, upgrading Go to 1.12.8 or newer (addresses CVE-2019-9512/9514 and related ...

CVE-2019-9518

CVE-2019-9518 describes a denial-of-service risk in HTTP/2 where a flood of frames with empty payloads (DATA, HEADERS, CONTINUATION, PUSH_PROMISE) and no end-of-stream flag can exhaust CPU and memory. Connected docs confirm concrete mentions across multiple ecosystems: Cloud Foundry products (emp...

CVE-2019-9515

CVE-2019-9515 concerns an HTTP/2 settings flood that can cause memory/CPU exhaustion. Arista’s security advisory (Security Advisory 0043) states the vulnerability is in Go’s gRPC HTTP/2 usage and can affect TerminAttr, OpenConfig, CVP, and certain Wi‑Fi OpenConfig-enabled components when enabled....

CVE-2022-3215

CVE-2022-3215 affects NIOHTTP1 and projects using it (e.g., SwiftNIO) where user input reflected into HTTP response headers can enable a HTTP Response Injection via CRLF sequences. The root cause is improper handling of input in HTTP headers, allowing newlines to be injected into responses, poten...

CVE-2018-4281

SwiftNIO before 1.8.0 is affected by a buffer overflow due to insufficient size validation. The vulnerability impacts the SwiftNIO network framework (Apple’s SwiftNIO), enabling a remote attacker to overwrite memory. Remediation is to upgrade to a version with the security content, e.g., SwiftNIO...

CVE-2026-43678

A vulnerability exists in swift-nio affecting NIOWebSocket-based servers , such as Vapor and Hummingbird . An unauthenticated remote attacker can trigger a Denial of Service (DoS) by sending a single 11-byte frame following a completed WebSocket handshake. This causes the server to crash and drop...