CVE-2021-27576 json
Apache OpenMeetings: bandwidth can be overloaded with public web service
published 2021-03-15 5 y ago modified 2026-06-17 4 mo ago also GHSA-px9f-597f-wmcf , EUVD-2021-1375
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.8%
- EPSS 2.8% chance of exploitation in 30 days, percentile 86%
- public exploits
- 0
- none known
Summary
If was found that the NetTest web service can be used to overload the bandwidth of a Apache OpenMeetings server. This issue was addressed in Apache OpenMeetings 6.0.0
Patch / fix
- maven org.apache.openmeetings:openmeetings-parent 6.0.0
- apache openmeetings 6.0.0
Exploit prediction
2.84% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| 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.apache.openmeetings:openmeetings-parent | >=4.0.0, <6.0.0 |
6.0.0 |
Affected products
- Apache Software Foundation Apache OpenMeetings
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
References
-
github.com
/apache/openmeetings/commit/060a3114ad759931aeb42cd9afa9d1ebb39d3075
web
-
github.com
/apache/openmeetings/commit/afe26c950b127776f2dfe920abff41a584874de8
web
-
github.com
/apache/openmeetings/commit/cbdfd2f9731a8fe3daa9b4adf5da4a063fde161d
web
-
lists.apache.org
/thread.html/r9bb615bd70a0197368f5f3ffc887162686caeb0b5fc30592a7a871e9%40%3Cuser.openmeetings.apache.org%3E
web, mailing-list, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-27576
advisory
-
issues.apache.org
/jira/browse/OPENMEETINGS-2551
web
-
openmeetings.apache.org
/security.html#cve-2021-27576---apache-openmeetings-bandwidth-can
web
Sources
- CVE List CVE-2021-27576
- GitHub Advisory GHSA-px9f-597f-wmcf
- NVD CVE-2021-27576
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.