CVE-2018-17187

CVE-2018-17187 affects the Apache Qpid Proton-J TLS wrapper. Versions 0.3–0.29.0 lacked hostname verification support, leaving clients that rely on the wrapper with only trusted-certificate verification and exposing them to MITM attacks. The mitigation is to upgrade Proton-J to 0.30.0+ and enable...

CVE-2026-66273

CVE-2026-66273 affects Apache Qpid Proton-J up to version 0.34.1. The issue is a pre-authentication vulnerability where improper handling of type size/count can cause excessive memory allocation, leading to denial of service. The advisory recommends upgrading to version 0.35.0, which contains the...

CVE-2026-66257

The CVE-2026-66257 entry applies to Apache Qpid Proton-J up to version 0.34.1. The root cause is unbounded symbol value caching, which allows a pre-authentication attacker to exhaust resources and cause denial of service. The available sources consistently report the impact as resource exhaustion...

CVE-2026-66275

CVE-2026-66275 affects Apache Qpid Proton-J up to version 0.34.1. An authenticated attacker could exceed the session flow control incoming window, potentially causing a denial of service. The issue is mitigated by upgrading to version 0.35.0. The CVSS 3.1 vector indicates network attack with low ...

CVE-2026-66276

CVE-2026-66276 affects Apache Qpid Proton-J (through 0.34.1). An authenticated attacker can craft a disposition frame with large or illegal ranges, triggering excessive CPU usage due to naive range handling and causing a denial of service. Remediation: upgrade to version 0.35.0.307

CVE-2026-66274

CVE-2026-66274 affects Apache Qpid Proton-J (up to 0.34.1). A pre-authentication attacker can exploit unbounded type nesting to trigger a StackOverflowError, leading to denial of service. Impact is limited to availability; no confidentiality or integrity impact stated. Upgrade to version 0.35.0, ...

CVE-2026-66277

CVE-2026-66277 affects Apache Qpid Proton-J up to version 0.34.1. The issue is an inability to govern the maximum number of transfer frames per incoming delivery, allowing an authenticated attacker to cause excessive resource usage and potential denial of service. The recommended remediation is t...