CVE-2025-53114 is a high-severity uncontrolled resource consumption vulnerability in org.cometd.java:cometd-java-server-common (maven), affecting versions >= 5.0.0, <= 5.0.22. It is fixed in 5.0.23, 6.0.19, 7.0.19, 8.0.9.
Impact Bad clients that always send a fixed batch value while the server is using the acknowledgement extension can cause the unacknowledged message queue to grow indefinitely, eventually resulting in an OutOfMemoryError. Such bad clients would always send: The server would never clear the unacknowledged message queue, and one bad client can cause a server outage. Patches 5.0.x - https://github.com/cometd/cometd/pull/2168 6.0.x - https://github.com/cometd/cometd/pull/2169 8.0.x - https://github.com/cometd/cometd/pull/2118 Workarounds Disable the acknowledgement extension. Resources https://github.com/cometd/cometd/discussions/2116 https://github.com/cometd/cometd/issues/2117
Crafted input forces the application to consume excessive CPU, memory, or other resources, degrading or denying service. Typical impact: denial of service.
CVE-2025-53114 has a CVSS score of 7.5 (High). The vector is network-reachable, no privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment.
A fixed version is available (5.0.23, 6.0.19, 7.0.19, 8.0.9). Upgrading removes the vulnerable code path.
maven
org.cometd.java:cometd-java-server-common (>= 5.0.0, <= 5.0.22)org.cometd.java:cometd-java-server-common (>= 6.0.0, <= 6.0.18)org.cometd.java:cometd-java-server-common (>= 7.0.0, <= 7.0.18)org.cometd.java:cometd-java-server-common (>= 8.0.0, <= 8.0.8)org.cometd.java:cometd-java-server-common → 5.0.23 (maven)org.cometd.java:cometd-java-server-common → 6.0.19 (maven)org.cometd.java:cometd-java-server-common → 7.0.19 (maven)org.cometd.java:cometd-java-server-common → 8.0.9 (maven)Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
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Upgrade the following packages to resolve this vulnerability:
org.cometd.java:cometd-java-server-common to 5.0.23 or laterorg.cometd.java:cometd-java-server-common to 6.0.19 or laterorg.cometd.java:cometd-java-server-common to 7.0.19 or laterorg.cometd.java:cometd-java-server-common to 8.0.9 or laterKodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.
CVE-2025-53114 is a high-severity uncontrolled resource consumption vulnerability in org.cometd.java:cometd-java-server-common (maven), affecting versions >= 5.0.0, <= 5.0.22. It is fixed in 5.0.23, 6.0.19, 7.0.19, 8.0.9. Crafted input forces the application to consume excessive CPU, memory, or other resources, degrading or denying service.
CVE-2025-53114 has a CVSS score of 7.5 (High). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
org.cometd.java:cometd-java-server-common (maven) versions >= 5.0.0, <= 5.0.22 is affected.
Yes. CVE-2025-53114 is fixed in 5.0.23, 6.0.19, 7.0.19, 8.0.9. Upgrade to this version or later.
Whether CVE-2025-53114 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
org.cometd.java:cometd-java-server-common to 5.0.23 or laterorg.cometd.java:cometd-java-server-common to 6.0.19 or laterorg.cometd.java:cometd-java-server-common to 7.0.19 or laterorg.cometd.java:cometd-java-server-common to 8.0.9 or later