26 matches found
CVE-2026-56816
Netty HTTP/3 vulnerability (CVE-2026-56816): The Http3FrameCodec buffers incoming reserved HTTP/3 frame types up to the wire payload length and trusts payLoadLength, enabling an attacker to open many QUIC streams and send frames with oversized payloads, causing memory exhaustion and denial of ser...
EUVD-2024-55663
HCL Aftermarket EPC is vulnerable to attack since the Application is vulnerable to Lucky 13. that makes the SS LLUCKY13 possible affects the TLS1.1and 1.2 and DTLS1.0 or 1.2 implementations . It also affects previous versions such as SSL3.0 and TLS1.0. This can also be considered a type of...
CVE-2026-6790
In Eclipse Jetty, for HTTP/1, HTTP/2 and HTTP/3 requests, there is no strict check that the request authority host and port matches what provided in the Host header if present. This was not enforced in earlier HTTP RFC for example, in RFC 2616, but it is in the latest RFC 9110 and 9112. This...
CVE-2026-9545 exposing HTTP/3 early data
In this scenario, libcurl first uses a proper HTTP/3 server for the initial transfers, and when it makes a second transfer to the same site it has been replaced by the attacker's impostor machine - without a valid certificate. When libcurl returns to the hostname the second time with a cached SSL...
CVE-2026-48743 Envoy: HTTP/3 to HTTP/1 request smuggling via headers-only request with nonzero Content-Length
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.35.11, 1.36.7, 1.37.3, and 1.38.1, Envoy can translate a downstream HTTP/3 request that is complete at the transport layer HEADERS with FIN / headers-only close but still carries a nonzero...
exposing HTTP/3 early data
In this scenario, libcurl first uses a proper HTTP/3 server for the initial transfers, and when it makes a second transfer to the same site it has been replaced by the attacker's impostor machine - without a valid certificate. When libcurl returns to the hostname the second time with a cached SSL...
CVE-2026-53622 Traefik: HTTP/3 mTLS bypass via exact SNI TLSOptions lookup for wildcard and mixed-case hosts
Traefik is an HTTP reverse proxy and load balancer. Prior to 3.7.3, there is a critical vulnerability in Traefik's HTTP/3 QUIC TLS configuration selection that allows unauthenticated clients to bypass router-specific mTLS enforcement. When HTTP/3 is enabled on an entrypoint, the TLS handshake...
nginx 1.31.x < 1.31.2 Use-After-Free Vulnerability
The installed version of nginx is 1.31.x prior to 1.31.2. It is, therefore, affected by the following vulnerability: - NGINX Open Source has a vulnerability in the ngxhttpv3module module. When NGINX Open Source is configured to use the HTTP/3 QUIC module, a remote unauthenticated attacker along...
DEBIAN-CVE-2026-42530
NGINX Open Source has a vulnerability in the ngxhttpv3module module. When NGINX Open Source is configured to use the HTTP/3 QUIC module, a remote unauthenticated attacker along with conditions beyond their control can use a specially crafted HTTP/3 session to reopen a QPACK encoder stream. This m...
CVE-2026-48748
A flaw was found in Netty. A remote attacker can exploit a memory exhaustion vulnerability in the Netty HTTP/3 codec by creating an infinite number of blocked streams. This can lead to an Out Of Memory OOM error, resulting in a Denial of Service DoS for the affected system. Mitigation Mitigation...
GHSA-VVGJ-X9JQ-8CJ9 quic-go: HTTP/3 QPACK Trailer Expansion Memory Exhaustion
Summary An attacker can cause excessive memory allocation in quic-go's HTTP/3 client and server implementations by sending a QPACK-encoded HEADERS frame that decodes into a large trailer field section with many unique field names and/or large values. The implementation builds an http.Header for t...
CVE-2026-47077
Allocation of Resources Without Limits or Throttling vulnerability in benoitc hackney allows Flooding. hackneyh3:awaitresponseloop/6 accumulates the HTTP/3 response body in memory without any size cap. The after Timeout clause is a per-message inactivity timer that resets on every received chunk,...
EUVD-2026-31688
Allocation of Resources Without Limits or Throttling vulnerability in benoitc hackney allows Flooding. hackneyh3:awaitresponseloop/6 accumulates the HTTP/3 response body in memory without any size cap. The after Timeout clause is a per-message inactivity timer that resets on every received chunk,...
CVE-2026-47077
The CVE affects hackney (versions 2.0.0–4.0.0) due to an unbounded in-memory accumulation in hackney_h3:await_response_loop/6, where HTTP/3 response chunks are buffered without a cap. A malicious server can keep sending small chunks, preventing loop termination and exhausting the BEAM heap, leadi...
UBUNTU-CVE-2026-42582
Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final, when decoding header blocks, the non-Huffman branch of io.netty.handler.codec.http3.QpackDecoderdecodeHuffmanEncodedLiteral may execute new bytelength for a string literal before verifying that length byt...
OESA-2026-2083 haproxy security update
HAProxy is a free, very fast and reliable solution offering high availability, load balancing, and proxying for TCP and HTTP-based applications. It is particularly suited for very high traffic web sites and powers quite a number of the world's most visited ones. Security Fixes: An issue was...
RHEL 9 : python3.12 (RHSA-2026:4746)
The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:4746 advisory. Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level...
OESA-2026-1548 wireshark security update
Wireshark allows you to examine protocol data stored in files or as it is captured from wired or wireless WiFi or Bluetooth networks, USB devices, and many other sources. It supports dozens of protocol capture file formats and understands more than a thousand protocols. Security Fixes: Wireshark ...
BIT-NGINX-GATEWAY-2024-31079 NGINX HTTP/3 QUIC vulnerability
When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module, undisclosed HTTP/3 requests can cause NGINX worker processes to terminate or cause other potential impact. This attack requires that a request be specifically timed during the connection draining process, which the attacke...
