Copyright © 2012 Red Hat, Inc. All rights reserved. Important 2026-08-05T05:21:44 org.apache.qpid/protonj2: Apache Qpid ProtonJ2: Denial of Service via unbounded symbol value caching 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CWE-770

A pre-authentication attacker could leverage unbounded symbol value caching to cause resource exhaustion leading to denial of service. This issue affects Apache Qpid ProtonJ2: through 1.1.0. Users are recommended to upgrade to version 1.2.0, which fixes the issue.

A flaw was found in Apache Qpid ProtonJ2. A remote, unauthenticated attacker could exploit an issue with unbounded symbol value caching. This could lead to resource exhaustion, causing a denial of service (DoS) for legitimate users.

Red Hat AMQ Clients Affected protonj2 https://www.cve.org/CVERecord?id=CVE-2026-67588 https://nvd.nist.gov/vuln/detail/CVE-2026-67588 https://lists.apache.org/thread/vk4j02dzggfdrdkwvzmqo4jro2tgj0jt