high7.5
CVE-2025-53114
CometD is a scalable comet implementation for web messaging.
Impact
CometD is a scalable comet implementation for web messaging. In versions 5.0.0 through 5.0.22, 6.0.0 through 6.0.18, 7.0.0 through 7.0.18, and 8.0.0 through 8.0.8, bad clients that always send a fixed batch value when the server is using the acknowledgement extension may cause the unacknowledged message queue to grow indefinitely, eventually causing an `OutOfMemoryError`. Versions 5.0.23, 6.0.19, 7.0.19, and 8.0.9 patch the issue. As a workaround, disable the acknowledgement extension.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | org.cometd.java:cometd-java-server-common | >= 5.0.0, <= 5.0.22 | 5.0.23 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-cqgj-h8vf-4w59
- https://github.com/cometd/cometd/security/advisories/GHSA-cqgj-h8vf-4w59
- https://github.com/cometd/cometd/issues/2117
- https://github.com/cometd/cometd/pull/2118
- https://github.com/cometd/cometd/pull/2168
- https://github.com/cometd/cometd/pull/2169
- https://github.com/cometd/cometd/discussions/2116