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Apache Qpid Proton J

4 CVEs product

Monthly

CVE-2026-66274 Aug 05, 05:29 HIGH This Week

Denial of service in Apache Qpid Proton-J through 0.34.1 allows unauthenticated remote attackers to crash the service by sending AMQP messages with deeply nested type structures that exhaust the JVM call stack via a StackOverflowError. The CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms trivial, unauthenticated network exploitation with no user interaction required, targeting availability exclusively. No active exploitation has been confirmed - this vulnerability is absent from CISA KEV and carries a low EPSS score of 0.21% (11th percentile) - but the zero-prerequisite attack path warrants prompt patching for any internet-facing AMQP deployment.

Denial Of Service Apache Red Hat Apache Qpid Proton J Apache Software Foundation
NVD VulDB
CVSS 3.1
7.5
EPSS
0.2%
CVE-2026-66277 Aug 05, 05:42 MEDIUM This Month

Resource exhaustion in Apache Qpid Proton-J through 0.34.1 allows authenticated AMQP clients to trigger unbounded server-side resource consumption by sending a delivery composed of an arbitrarily large number of transfer frames - a limit the library fails to enforce. The root cause (CWE-770) is an absent cap on per-delivery transfer frame counts during message ingestion, not a memory corruption or code execution class flaw. No public exploit has been identified at time of analysis, and the vulnerability is not listed in CISA KEV; the primary risk is targeted denial of service against messaging infrastructure by any authenticated AMQP peer.

Denial Of Service Apache Red Hat Apache Qpid Proton J Apache Software Foundation
NVD VulDB
CVSS 3.1
6.5
EPSS
0.2%
CVE-2026-66276 Aug 05, 05:39 MEDIUM This Month

Denial of service in Apache Qpid Proton-J through 0.34.1 allows authenticated AMQP clients to exhaust server CPU by sending a crafted disposition frame carrying large or illegal delivery ranges. The library's naive range handling iterates without bounds validation, causing unbounded CPU consumption that can starve legitimate connections. No public exploit identified at time of analysis; vendor-released fix is available in version 0.35.0.

Denial Of Service Apache Red Hat Apache Qpid Proton J Apache Software Foundation
NVD VulDB
CVSS 3.1
6.5
EPSS
0.2%
CVE-2026-66275 Aug 05, 05:34 MEDIUM This Month

Denial of service in Apache Qpid Proton-J through 0.34.1 allows authenticated remote attackers to render the messaging endpoint unresponsive by deliberately exceeding the AMQP session flow control incoming window, triggering unbounded resource consumption. The root cause is CWE-770 - insufficient throttling of resource allocation - a well-understood class of flaw in protocol session management. No active exploitation has been confirmed and no public exploit code is known at time of analysis; the vendor has released a fix in version 0.35.0.

Denial Of Service Apache Red Hat Apache Qpid Proton J Apache Software Foundation
NVD VulDB
CVSS 3.1
6.5
EPSS
0.2%
EPSS 0% CVSS 7.5
HIGH This Week

Denial of service in Apache Qpid Proton-J through 0.34.1 allows unauthenticated remote attackers to crash the service by sending AMQP messages with deeply nested type structures that exhaust the JVM call stack via a StackOverflowError. The CVSS vector (AV:N/AC:L/PR:N/UI:N) confirms trivial, unauthenticated network exploitation with no user interaction required, targeting availability exclusively. No active exploitation has been confirmed - this vulnerability is absent from CISA KEV and carries a low EPSS score of 0.21% (11th percentile) - but the zero-prerequisite attack path warrants prompt patching for any internet-facing AMQP deployment.

Denial Of Service Apache Red Hat +2
NVD VulDB
EPSS 0% CVSS 6.5
MEDIUM This Month

Resource exhaustion in Apache Qpid Proton-J through 0.34.1 allows authenticated AMQP clients to trigger unbounded server-side resource consumption by sending a delivery composed of an arbitrarily large number of transfer frames - a limit the library fails to enforce. The root cause (CWE-770) is an absent cap on per-delivery transfer frame counts during message ingestion, not a memory corruption or code execution class flaw. No public exploit has been identified at time of analysis, and the vulnerability is not listed in CISA KEV; the primary risk is targeted denial of service against messaging infrastructure by any authenticated AMQP peer.

Denial Of Service Apache Red Hat +2
NVD VulDB
EPSS 0% CVSS 6.5
MEDIUM This Month

Denial of service in Apache Qpid Proton-J through 0.34.1 allows authenticated AMQP clients to exhaust server CPU by sending a crafted disposition frame carrying large or illegal delivery ranges. The library's naive range handling iterates without bounds validation, causing unbounded CPU consumption that can starve legitimate connections. No public exploit identified at time of analysis; vendor-released fix is available in version 0.35.0.

Denial Of Service Apache Red Hat +2
NVD VulDB
EPSS 0% CVSS 6.5
MEDIUM This Month

Denial of service in Apache Qpid Proton-J through 0.34.1 allows authenticated remote attackers to render the messaging endpoint unresponsive by deliberately exceeding the AMQP session flow control incoming window, triggering unbounded resource consumption. The root cause is CWE-770 - insufficient throttling of resource allocation - a well-understood class of flaw in protocol session management. No active exploitation has been confirmed and no public exploit code is known at time of analysis; the vendor has released a fix in version 0.35.0.

Denial Of Service Apache Red Hat +2
NVD VulDB

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