CVE catalog
CVE-2021-22144
UBUNTU-CVE-2021-22144
- Severity
- Medium · CVSS 6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 2.44% · Oct 25, 2026
In Elasticsearch versions before 7.13.3 and 6.8.17 an uncontrolled recursion vulnerability that could lead to a denial of service attack was identified in the Elasticsearch Grok parser. A user with the ability to submit arbitrary queries to Elasticsearch could create a malicious Grok query that will crash the Elasticsearch node.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Ubuntu | elasticsearch | 16.04 | 1.6.2+dfsg-1 | vulnerable |
| Ubuntu | elasticsearch | 16.04 | 1.7.3+dfsg-1 | vulnerable |
| Ubuntu | elasticsearch | 16.04 | 1.7.3+dfsg-2 | vulnerable |
| Ubuntu | elasticsearch | 16.04 | 1.7.3+dfsg-3 | vulnerable |
Fixed-version evidence
OpenFactory catalog packages
No matching packages in this catalog.
Observed: