CVE-2025-53114 json
CometD has acknowledgement extension out of memory
published 2026-06-10 4 mo ago modified 2026-10-12 27 d ago also EUVD-2025-210284 , GHSA-cqgj-h8vf-4w59
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 52%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- maven org.cometd.java:cometd-java-server-common 5.0.23, 6.0.19, 7.0.19, 8.0.9
- cometd cometd 5.0.23, 6.0.19, 7.0.19, 8.0.9
- org.cometd.java cometd-java-server-common 5.0.23, 6.0.19, 7.0.19, 8.0.9
- github.com/cometd/cometd#2118 pull request
- github.com/cometd/cometd#2168 pull request
- github.com/cometd/cometd#2169 pull request
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.68% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.cometd.java:cometd-java-server-common | >=5.0.0, <5.0.23 >=6.0.0, <6.0.19 >=7.0.0, <7.0.19 >=8.0.0, <8.0.9 |
5.0.23 6.0.19 7.0.19 8.0.9 |
Affected products
- cometd cometd
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
References
-
github.com
/cometd/cometd/pull/2118
web
-
github.com
/cometd/cometd/pull/2168
web
-
github.com
/cometd/cometd/pull/2169
web
-
github.com
/cometd/cometd/security/advisories/GHSA-cqgj-h8vf-4w59
web
-
github.com
/cometd/cometd/issues/2117
web
-
github.com
/cometd/cometd/discussions/2116
web
-
github.com
/cometd/cometd
package
Sources
- CVE List CVE-2025-53114
- GitHub Advisory GHSA-cqgj-h8vf-4w59
- NVD CVE-2025-53114
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.