vulnerability
Elastic Elasticsearch: CVE-2021-22144: Uncontrolled Recursion
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:L/Au:S/C:N/I:N/A:P) | Jul 26, 2021 | May 13, 2025 | Mar 25, 2026 |
Severity
4
CVSS
(AV:N/AC:L/Au:S/C:N/I:N/A:P)
Published
Jul 26, 2021
Added
May 13, 2025
Modified
Mar 25, 2026
Description
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.
Solution
elastic-elasticsearch-upgrade-latest
References
- CWE-674
- CVE-2021-22144
- https://attackerkb.com/topics/CVE-2021-22144
- https://discuss.elastic.co/t/elasticsearch-7-13-3-and-6-8-17-security-update/278100
- https://security.netapp.com/advisory/ntap-20210827-0006/
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-1526
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