CVE-2021-22144
mediumpriority · track · 27EPSS 0.024 · 84 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (8)
Products and version ranges known to be affected.
- oracle communications cloud native core automated test suite= 1.8.0nvdUScpe:2.3:a:oracle:communications_cloud_native_core_automated_test_suite:*:*:*:*:*:*:*:*
- Maven org.elasticsearch:elasticsearch7.0.0-alpha1 → 7.13.3osvUSpkg:maven/org.elasticsearch/elasticsearch
advisories (2)
Vendor and ecosystem advisories describing this.
- GHSA-3393-hvrj-w7v3Denial of Service in Elasticsearch2021-08-09ghsa · osvUS
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.
- BIT-elasticsearch-2021-221442024-03-06vendor · osvUS
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.
also known as (5)
Other names and identifiers for this entity.
- CNNVD-202107-414cnnvd
- EUVD-2021-1526enisa_euvd
- GHSA-3393-hvrj-w7v3enisa_euvd
- BIT-elasticsearch-2021-22144osv
- GHSA-3393-hvrj-w7v3osv
sources
Which sources assert this record, and when.
references (14)
External citations — patches, advisories, analysis.
- https://discuss.elastic.co/t/elasticsearch-7-13-3-and-6-8-17-security-update/278100cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-22144cnnvd
- https://security.netapp.com/advisory/ntap-20210827-0006/cnnvd
- https://vigilance.fr/vulnerability/Elasticsearch-denial-of-service-via-Grok-35840cnnvd
- https://www.auscert.org.au/bulletins/ESB-2021.4283cnnvd
- https://www.cybersecurity-help.cz/vdb/SB2021070907cnnvd
- https://www.ibm.com/support/pages/node/6526540cnnvd
- https://www.oracle.com/security-alerts/cpuapr2022.htmlcnnvd
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