CVE-2026-85718 AsyncHttpClient: Connection permit leak on TLS handshake failure causes per-host denial of service

The AsyncHttpClient AHC library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. From 3.0.8 until 3.0.12, a client with maxConnections or maxConnectionsPerHost set above zero leaks one connection permit whenever TLS connection establishment fails...

CVE-2026-85718 AsyncHttpClient: Connection permit leak on TLS handshake failure causes per-host denial of service

The AsyncHttpClient AHC library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. From 3.0.8 until 3.0.12, a client with maxConnections or maxConnectionsPerHost set above zero leaks one connection permit whenever TLS connection establishment fails...

CVE-2026-85718

The AsyncHttpClient AHC library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. From 3.0.8 until 3.0.12, a client with maxConnections or maxConnectionsPerHost set above zero leaks one connection permit whenever TLS connection establishment fails...

CVE-2026-85718

AsyncHttpClient (AHC) for Java is affected by a connection permit leak in versions 3.0.8 through 3.0.12. When a TLS connection fails before the handshake completes, NettyConnectListener removes the partition key lock permit from NettyResponseFuture before all failure paths are bound to the channe...

nginx: NGINX ngx_http_v3_module: Denial of Service via TLS handshake heap buffer overflow

A flaw was found in NGINX ngxhttpv3module. A limited heap buffer overflow can occur during a Transport Layer Security TLS handshake when using HTTP/3 with certain OpenSSL versions. This vulnerability may allow remote attackers to cause a denial-of-service DoS on the NGINX system. Additionally, it...

Linux Distros Unpatched Vulnerability : CVE-2026-90439

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpv3module module. When using HTTP/3 with OpenSSL versions = OpenSSL 3.5.0 under certain...

libp2p-quic: Remote panic via certificate expiry race during QUIC handshake

Summary libp2p-quic can panic on an inbound QUIC handshake if a malicious peer presents a valid, short lived libp2p TLS certificate and delays the final TLS 1.3 handshake fragment until the certificate expires. This is remotely reachable by a network peer and can crash applications exposing a...

DEBIAN-CVE-2026-91949

FreeRDP server versions before 3.31.0 contain a protocol negotiation bypass vulnerability that allows unauthenticated attackers to establish RDSTLS connections despite server policy disabling them. Attackers can send incompatible protocol requests, receive negotiation failures, then complete TLS...

CVE-2026-91949 FreeRDP 3.0.0 through 3.30.0 Protocol Negotiation Bypass

FreeRDP server versions before 3.31.0 contain a protocol negotiation bypass vulnerability that allows unauthenticated attackers to establish RDSTLS connections despite server policy disabling them. Attackers can send incompatible protocol requests, receive negotiation failures, then complete TLS...

CVE-2026-91949

FreeRDP server versions 3.0.0 through 3.30.0 (before 3.31.0 ) contain a protocol negotiation bypass vulnerability. The root cause, as described in the associated GHSA advisory (GHSA-x7v6-xfx3-52j6), is that the server continues after a negotiation failure and dispatches a failure code as RDSTLS ,...

CVE-2026-91949 FreeRDP 3.0.0 through 3.30.0 Protocol Negotiation Bypass

FreeRDP server versions before 3.31.0 contain a protocol negotiation bypass vulnerability that allows unauthenticated attackers to establish RDSTLS connections despite server policy disabling them. Attackers can send incompatible protocol requests, receive negotiation failures, then complete TLS...

CVE-2026-90439

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpv3module module. When using HTTP/3 with OpenSSL versions = OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner th...

CVE-2026-90439 NGINX ngx_http_v3_module vulnerability

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpv3module module. When using HTTP/3 with OpenSSL versions = OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner th...

CVE-2026-90439

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpv3module module. When using HTTP/3 with OpenSSL versions = OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner th...

CVE-2026-90439 NGINX ngx_http_v3_module vulnerability

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpv3module module. When using HTTP/3 with OpenSSL versions = OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner th...

CVE-2026-90439

NGINX Plus and Open Source are affected by a heap buffer overflow (CWE-122) in the ngx_http_v3_module when handling HTTP/3 with OpenSSL 3.5.0 or earlier under certain configurations. The overflow occurs during TLS handshake processing in a worker process and is non-deterministic , meaning it is n...

EUVD-2026-78585

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpv3module module. When using HTTP/3 with OpenSSL versions = OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner th...

K000162604: NGINX ngx_http_v3_module vulnerability CVE-2026-90439

Security Advisory Description NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpv3module module. When using HTTP/3 with OpenSSL versions 3.5.0 and earlier under certain configurations, a limited heap buffer overflow could happen while processing a Transport Layer Security TLS...

CVE-2026-90439: Heap-based Buffer Overflow

NGINX Plus and NGINX Open Source have a vulnerability in the ngxhttpv3module module. When using HTTP/3 with OpenSSL versions = OpenSSL 3.5.0 under certain configurations, a limited heap buffer overflow could happen while processing a TLS handshake. This can happen in a non-deterministic manner th...

PT-2026-92035

Name of the Vulnerable Software and Affected Versions NGINX Plus affected versions not specified NGINX Open Source versions prior to 1.30.5 NGINX Open Source versions prior to 1.31.6 Description A heap buffer overflow can occur in the ngx http v3 module module when using HTTP/3 with OpenSSL...