JLSEC-2026-1198 An issue in curl’s QUIC UDP receive function allows a malicious HTTP/3 server to trigger a remote...

An issue in curl’s QUIC UDP receive function allows a malicious HTTP/3 server to trigger a remote denial of service against a curl or libcurl client. Because the helper function discards zero-length UDP datagrams before counting them toward the per-call packet budget, a connected QUIC peer can...

EulerOS 2.0 SP15 : haproxy (EulerOS-SA-2026-2886)

According to the versions of the haproxy packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : An issue was discovered in HAProxy before 3.3.6. The HTTP/3 parser does not check that the received body length matches a previously announced...

EulerOS 2.0 SP13 : haproxy (EulerOS-SA-2026-2968)

According to the versions of the haproxy packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : An issue was discovered in HAProxy before 3.3.6. The HTTP/3 parser does not check that the received body length matches a previously announced...

EulerOS 2.0 SP13 : haproxy (EulerOS-SA-2026-3018)

According to the versions of the haproxy packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : An issue was discovered in HAProxy before 3.3.6. The HTTP/3 parser does not check that the received body length matches a previously announced...

Important: Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.7 Product Security and Bug Fix Update

An update is now available for Red Hat Ansible Automation Platform 2.7 Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from t...

UBUNTU-CVE-2026-65324

Apache Traffic Server drops the per-stream buffer cap when dechunking HTTP/2 or HTTP/3 responses, letting a slow client exhaust server memory. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrad...

EUVD-2026-50206

Apache Traffic Server drops the per-stream buffer cap when dechunking HTTP/2 or HTTP/3 responses, letting a slow client exhaust server memory. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrad...

CVE-2026-65324 Apache Traffic Server: HTTP/2 and HTTP/3 dechunking removes per-stream buffer cap, allowing memory exhaustion

Apache Traffic Server drops the per-stream buffer cap when dechunking HTTP/2 or HTTP/3 responses, letting a slow client exhaust server memory. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrad...

CVE-2026-65324

Apache Traffic Server is affected by CVE-2026-65324 where the per-stream buffer cap is removed during dechunking of HTTP/2 and HTTP/3 responses, enabling memory exhaustion by a slow client. Affected versions: 8.0.0–8.1.9, 9.0.0–9.2.14, and 10.0.0–10.1.3. The issue can impact availability due to m...

SUSE SLES16 Security Update : nginx (SUSE-SU-2026:22943-1)

The remote SUSE Linux SLES16 / SLESSAP16 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:22943-1 advisory. This update for nginx fixes the following issues - CVE-2026-40460: bypass of authorization and bypass of rate limiting when NGINX ...

cowlib: Cowlib: Denial of Service due to unbounded HPACK/QPACK prefixed-integer decoding

A flaw was found in cowlib, an HTTP parser. An unauthenticated remote attacker could exploit this vulnerability by sending specially crafted HTTP/2 or HTTP/3 frames containing oversized HPACK or QPACK prefixed integers. This unbounded decoding process leads to excessive memory allocation and...

CVE-2026-59248

Allocation of resources without limits vulnerability in ninenines cowlib allows an unauthenticated remote HTTP/2 or HTTP/3 peer to exhaust memory on the vulnerable server or client and cause a denial of service. The HPACK and QPACK prefixed-integer decoder cowhpackcommon:decbigint/3 in...

SUSE-SU-2026:22943-1 Security update for nginx

This update for nginx fixes the following issues - CVE-2026-40460: bypass of authorization and bypass of rate limiting when NGINX is configured to use the HTTP/3 QUIC module bsc1265228. - CVE-2026-42055: heap-based buffer overflow in the ngxhttpproxyv2module and ngxhttpgrpcmodule modules...

OPENSUSE-SU-2026:21439-1 Security update for nginx

This update for nginx fixes the following issues - CVE-2026-40460: bypass of authorization and bypass of rate limiting when NGINX is configured to use the HTTP/3 QUIC module bsc1265228. - CVE-2026-42055: heap-based buffer overflow in the ngxhttpproxyv2module and ngxhttpgrpcmodule modules...

GHSA-7P3P-8QV8-M2VH Eclipse Jetty: HTTP Authority/Host mismatch

Summary Jetty currently accepts HTTP/2 and HTTP/3 requests where the regular Host header and the pseudo-header :authority do not match. As a result, the same request can carry two different host identities through Jetty: - logic based on HttpURI / Request.getServerNamerequest uses :authority -...

EUVD-2026-47564

Netty: Memory Exhaustion via HTTP/3 Reserved Frame Types...

SUSE CVE-2026-56816

Netty is a network application framework for development of protocol servers and clients. Prior to 4.2.16.Final, Netty's Http3FrameCodec buffers incoming data for HTTP/3 reserved frame types up to the wire-specified payload length without limits; decodeFrame trusts payLoadLength, allowing an...

DEBIAN-CVE-2026-56816

Netty is a network application framework for development of protocol servers and clients. Prior to 4.2.16.Final, Netty's Http3FrameCodec buffers incoming data for HTTP/3 reserved frame types up to the wire-specified payload length without limits; decodeFrame trusts payLoadLength, allowing an...

CVE-2026-56816

Netty is a network application framework for development of protocol servers and clients. Prior to 4.2.16.Final, Netty's Http3FrameCodec buffers incoming data for HTTP/3 reserved frame types up to the wire-specified payload length without limits; decodeFrame trusts payLoadLength, allowing an...

CVE-2026-56816

Netty is a network application framework for development of protocol servers and clients. Prior to 4.2.16.Final, Netty's Http3FrameCodec buffers incoming data for HTTP/3 reserved frame types up to the wire-specified payload length without limits; decodeFrame trusts payLoadLength, allowing an...