Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via a specially crafted search request submitted by a low-privileged authenticated user. A user with read-level index access can submit a request that triggers unbounded recursive processing within the Elasticsearch query evaluation component, causing a fatal error that terminates the affected node. In single-node deployments, this results in complete service outage; in multi-node clusters, it causes repeated node restarts and sustained availability degradation.
Metrics
Affected Vendors & Products
References
History
Wed, 22 Jul 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Wed, 22 Jul 2026 05:30:00 +0000
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| First Time appeared |
Elastic
Elastic elasticsearch |
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| Vendors & Products |
Elastic
Elastic elasticsearch |
Tue, 21 Jul 2026 22:45:00 +0000
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| Description | Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via a specially crafted search request submitted by a low-privileged authenticated user. A user with read-level index access can submit a request that triggers unbounded recursive processing within the Elasticsearch query evaluation component, causing a fatal error that terminates the affected node. In single-node deployments, this results in complete service outage; in multi-node clusters, it causes repeated node restarts and sustained availability degradation. | |
| Title | Uncontrolled Recursion in Elasticsearch Leading to Denial of Service | |
| Weaknesses | CWE-674 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: elastic
Published:
Updated: 2026-07-22T13:27:01.544Z
Reserved: 2026-07-15T18:23:57.166Z
Link: CVE-2026-63144
Updated: 2026-07-22T13:26:46.428Z
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OpenCVE Enrichment
Updated: 2026-07-22T05:15:02Z