Skip to content
fr Sign in
6.5 Medium

CVE-2026-103006 Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to Denial of Service via a specially crafted, deeply nested…

Description

Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to Denial of Service via a specially crafted, deeply nested request submitted to the aggregation feature of the search API. Elasticsearch contains an uncontrolled recursion weakness in its search aggregation processing. An authenticated user with read access to a single index can submit a specially crafted request containing deeply nested aggregation definitions. Processing this request triggers unbounded recursive execution that exhausts the server process's available resources, causing the affected node to terminate. The node does not recover automatically and requires manual intervention to restore service.

Affected products and versions

Product Affected versions Fixed in
Elasticsearch 9.5 9.5.0 → 9.5.1 No fix stated
Elasticsearch 9.0 9.0.0 → 9.4.5 No fix stated
Elasticsearch 8.0 8.0.0 → 8.19.20 No fix stated

References

Timeline

  1. Published
  2. Last modified

Other CVEs of Elasticsearch

The 91 CVEs of Elasticsearch →
CVE-2026-115715 Allocation of Resources Without Limits or Throttling (CWE-770) in Elasticsearch can lead to denial of service via a… 6.5 Medium CVE-2026-115710 Use of Cache Containing Sensitive Information (CWE-524) in Elasticsearch can lead to information disclosure and… 4.2 Medium CVE-2026-115298 Incorrect Authorization (CWE-863) in Elasticsearch can lead to information disclosure via Accessing Functionality Not… 4.3 Medium CVE-2026-115290 Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via Serialized Data with Nested Payloads… 7.5 High
Track this CVE