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Apache Software Foundation Apache Qpid ProtonJ2 vulnerabilities

5 known vulnerabilities, 0 confirmed exploited in the wild (CISA KEV), 5 published in the last 12 months.

Check whether your Apache Software Foundation Apache Qpid ProtonJ2 version is affected

Latest Apache Software Foundation Apache Qpid ProtonJ2 vulnerabilities

• CVE-2026-67592 — Apache Qpid ProtonJ2: Unable to govern the maximum number of transfer frames per incoming delivery (CVSS 7.5)
• CVE-2026-67591 — Apache Qpid ProtonJ2: Incoming session flow control window can be exceeded (CVSS 6.5)
• CVE-2026-67590 — Apache Qpid ProtonJ2: Unbounded type nesting can lead to pre-authentication stackoverflow (CVSS 7.5)
• CVE-2026-67589 — Apache Qpid ProtonJ2: Type size/count handling can lead to excessive allocation pre-authentication (CVSS 7.5)
• CVE-2026-67588 — Apache Qpid ProtonJ2: Unbounded symbol value caching can lead to pre-authentication resource exhaustion (CVSS 7.5)