CVE-2026-66277: Allocation of Resources Without Limits or Throttling

It was not possible to govern the maximum number of transfer frames per incoming delivery, enabling an authenticated attacker to cause excessive resource usage and potential denial of service. This issue affects Apache Qpid Proton-J: through 0.34.1. Users are recommended to upgrade to version...

CVE-2026-66257: Allocation of Resources Without Limits or Throttling

A pre-authentication attacker could leverage unbounded symbol value caching to cause resource exhaustion leading to denial of service. This issue affects Apache Qpid Proton-J: through 0.34.1. Users are recommended to upgrade to version 0.35.0, which fixes the issue...

CVE-2026-66273: Memory Allocation with Excessive Size Value

A pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential denial of service. This issue affects Apache Qpid Proton-J: through 0.34.1. Users are recommended to upgrade to version 0.35.0, which fixes the issue...

CVE-2026-66275: Allocation of Resources Without Limits or Throttling

An authenticated attacker could exceed the session flow control incoming window potentially leading to denial of service. This issue affects Apache Qpid Proton-J: through 0.34.1. Users are recommended to upgrade to version 0.35.0, which fixes the issue...

PT-2026-68001

Name of the Vulnerable Software and Affected Versions Apache Qpid Proton-Dotnet versions prior to 1.1.0 Description An authenticated attacker can cause excessive resource usage and a potential denial of service because the system cannot govern the maximum number of transfer frames per incoming...

CVE-2026-66276: Unchecked Input for Loop Condition

An authenticated attacker can craft a disposition frame with large or illegal ranges causing excessive CPU usage due to naive range handling, leading to denial of service. This issue affects Apache Qpid Proton-J: through 0.34.1. Users are recommended to upgrade to version 0.35.0, which fixes the...

EUVD-2016-5454

Malware in sbrugna...

EUVD-2018-0588

Malware in sbrugna...

EUVD-2018-0790

Malware in sbrugna...

EUVD-2022-2590

Malicious code in bioql PyPI...

Linux Distros Unpatched Vulnerability : CVE-2016-2166

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The 1 proton.reactor.Connector, 2 proton.reactor.Container, and 3 proton.utils.BlockingConnection classes in Apache Qpid Proton before 0.12.1 improperly use an...

SUSE CVE-2016-2166

The 1 proton.reactor.Connector, 2 proton.reactor.Container, and 3 proton.utils.BlockingConnection classes in Apache Qpid Proton before 0.12.1 improperly use an unencrypted connection for an amqps URI scheme when SSL support is unavailable, which might allow man-in-the-middle attackers to obtain...

Withdrawn Advisory: Improper Certificate Validation in Apache Qpid Proton

Withdrawn Advisory This advisory has been withdrawn because the vulnerability only affects the Qpid Proton C library and not org.apache.qpid:proton-j. This link has been maintained to preserve external references. Original Description While investigating bug PROTON-2014, we discovered that under...

Improper TLS Certificate Validation

Apache Qpid Proton is vulnerable to man-in-the-middle MitM attacks. A remote attacker is able to intercept TLS traffic as the application provides anonymous ciphers to authenticate a client regardless of the client's configuration to verify the server's certificate or hostname. The vulnerability ...

CVE-2019-0223

While investigating bug PROTON-2014, we discovered that under some circumstances Apache Qpid Proton versions 0.9 to 0.27.0 C library and its language bindings can connect to a peer anonymously using TLS even when configured to verify the peer certificate while used with OpenSSL versions before...

CVE-2019-0223

While investigating bug PROTON-2014, we discovered that under some circumstances Apache Qpid Proton versions 0.9 to 0.27.0 C library and its language bindings can connect to a peer anonymously using TLS even when configured to verify the peer certificate while used with OpenSSL versions before...

CVE-2019-0223

While investigating bug PROTON-2014, we discovered that under some circumstances Apache Qpid Proton versions 0.9 to 0.27.0 C library and its language bindings can connect to a peer anonymously using TLS even when configured to verify the peer certificate while used with OpenSSL versions before...

Code injection

While investigating bug PROTON-2014, we discovered that under some circumstances Apache Qpid Proton versions 0.9 to 0.27.0 C library and its language bindings can connect to a peer anonymously using TLS even when configured to verify the peer certificate while used with OpenSSL versions before...

CVE-2019-0223

While investigating bug PROTON-2014, we discovered that under some circumstances Apache Qpid Proton versions 0.9 to 0.27.0 C library and its language bindings can connect to a peer anonymously using TLS even when configured to verify the peer certificate while used with OpenSSL versions before...

CVE-2019-0223

CVE-2019-0223 concerns Apache Qpid Proton (C library and bindings) versions 0.9–0.27.0. Under TLS with OpenSSL versions before 1.1.0, a peer could be connected anonymously even when peer cert verification is configured, enabling a potential undetected man-in-the-middle attack if TLS traffic is in...