openssl: OpenSSL: Denial of Service via unbounded QUIC connection identifier backlog

A flaw was found in OpenSSL. A remote attacker can cause a Denial of Service DoS by flooding a connection with connection identifier update requests while withholding acknowledgments. This behavior bypasses connection limits and forces the system to accumulate pending retirement frames, resulting...

OESA-2026-4197 coredns security update

CoreDNS is a fast and flexible DNS server. The key word here is flexible: with CoreDNS you are able to do what you want with your DNS data by utilizing plugins. Security Fixes: CoreDNS is a DNS server written in Go. Prior to 1.14.7, the DNS-over-HTTPS, DNS-over-HTTP/3, DNS-over-QUIC, and...

OESA-2026-4196 coredns security update

CoreDNS is a fast and flexible DNS server. The key word here is flexible: with CoreDNS you are able to do what you want with your DNS data by utilizing plugins. Security Fixes: CoreDNS is a DNS server written in Go. Prior to 1.14.7, the DNS-over-HTTPS, DNS-over-HTTP/3, DNS-over-QUIC, and...

OESA-2026-4195 coredns security update

CoreDNS is a fast and flexible DNS server. The key word here is flexible: with CoreDNS you are able to do what you want with your DNS data by utilizing plugins. Security Fixes: CoreDNS is a DNS server written in Go. Prior to 1.14.7, the DNS-over-HTTPS, DNS-over-HTTP/3, DNS-over-QUIC, and...

OESA-2026-4194 coredns security update

CoreDNS is a fast and flexible DNS server. The key word here is flexible: with CoreDNS you are able to do what you want with your DNS data by utilizing plugins. Security Fixes: CoreDNS is a DNS server written in Go. Prior to 1.14.7, the DNS-over-HTTPS, DNS-over-HTTP/3, DNS-over-QUIC, and...

openssl openssl-4.0.3

Welcome to the OpenSSL Project !openssl logowww.openssl.org !github actions ci badgegithub actions ci OpenSSL is a robust, commercial-grade, full-featured Open Source Toolkit for the Transport Layer Security TLS, formerly SSL, Datagram TLS DTLS, and QUIC protocols. The protocol implementations ar...

Linux Distros Unpatched Vulnerability : CVE-2026-100665

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Netty versions from 4.2.11.Final before 4.2.18.Final contain an incomplete hostname verification fix in the QUIC certificate verification path when using a plai...

Linux Distros Unpatched Vulnerability : CVE-2026-84784

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Issue summary: A malicious remote peer may flood the local QUIC stack with NEWCONNECTIONID frames by avoiding a limit check on how many connection IDs the remot...

The vulnerability of the QUIC protocol implementation in Windows operating systems allows a hacker to execute arbitrary code.

The vulnerability of the QUIC protocol implementation in Windows operating systems is related to the use of memory after it is freed. Exploiting this vulnerability allows a remote attacker to execute arbitrary code...

SUSE CVE-2026-78227

NLnet Labs Unbound 1.22.0 up to and including 1.26.1, has a use-after-free vulnerability when compiled for DNS-over-QUIC support with '--with-libngtcp2'. Each DoQ stream owns an output buffer that holds the DNS response. ngtcp2's retransmission buffer keeps a shallow pointer into the output buffe...

USN-8847-1 openssl vulnerabilities

It was discovered that OpenSSL incorrectly handled certain certificate revocation list distribution point names. An attacker could possibly use this issue to cause OpenSSL to consume excessive memory, resulting in a denial of service. CVE-2026-35189 It was discovered that OpenSSL incorrectly...

USN-8847-1: OpenSSL vulnerabilities

It was discovered that OpenSSL incorrectly handled certain certificate revocation list distribution point names. An attacker could possibly use this issue to cause OpenSSL to consume excessive memory, resulting in a denial of service. CVE-2026-35189 It was discovered that OpenSSL incorrectly...

CVE-2026-35191

A flaw was found in OpenSSL. This vulnerability allows a remote attacker to abuse the server to amplify network traffic in a Denial of Service DoS attack. When the server is configured without client address validation, incoming datagrams containing multiple QUIC packets cause the server to...

CVE-2026-54873

A flaw was found in OpenSSL. A remote attacker can cause a Denial of Service DoS by sending specially crafted network packets to a QUIC protocol endpoint. Because the QUIC stack retains memory in packet buffers until the receiving application reads the stream data, an attacker can manipulate data...

CVE-2026-42772

A flaw was found in OpenSSL. A remote attacker who establishes a QUIC network connection can cause a Denial of Service DoS by sending specially sequenced, out-of-order stream frames. Because the stream reassembly mechanism handles non-sequential data fragments inefficiently, processing these fram...

CVE-2026-75804

A flaw was found in OpenSSL. A remote attacker can cause a Denial of Service DoS due to missing connection-level flow control enforcement in the QUIC protocol implementation. By opening multiple streams that respect individual stream limits while preventing data consumption, the attacker can forc...

Allocation of Resources Without Limits or Throttling

Overview Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling in the QUIC flow control enforcement, which applies the stream level window but not the connection level one. An attacker can force roughly 100 MB of allocation against a default 768 ...

AZL-105879 CVE-2026-84784 affecting package rust 1.96.1-2

Issue summary: A malicious remote peer may flood the local QUIC stack with NEWCONNECTIONID frames by avoiding a limit check on how many connection IDs the remote QUIC stack can use. Impact summary: The local QUIC stack sends a RETIRECONNID frame for every NEWCONNECTIONID frame it receives. The...

AZL-105468 CVE-2026-84784 affecting package cloud-hypervisor 52.0.152-1

Issue summary: A malicious remote peer may flood the local QUIC stack with NEWCONNECTIONID frames by avoiding a limit check on how many connection IDs the remote QUIC stack can use. Impact summary: The local QUIC stack sends a RETIRECONNID frame for every NEWCONNECTIONID frame it receives. The...

AZL-105618 CVE-2026-84784 affecting package openvmm 0.1.0-1

Issue summary: A malicious remote peer may flood the local QUIC stack with NEWCONNECTIONID frames by avoiding a limit check on how many connection IDs the remote QUIC stack can use. Impact summary: The local QUIC stack sends a RETIRECONNID frame for every NEWCONNECTIONID frame it receives. The...