Skip to content
fr Sign in
6.5 Medium

CVE-2026-72636 Uncontrolled Recursion (CWE-674) in the Elasticsearch wildcard matching helper can lead to a denial of service via…

Description

Uncontrolled Recursion (CWE-674) in the Elasticsearch wildcard matching helper can lead to a denial of service via Excessive Allocation (CAPEC-130). The matcher used to resolve wildcard patterns against names is implemented recursively and had no bound on recursion depth or on the total number of match operations performed. A search request containing a wildcard pattern with a large number of wildcard groups, evaluated against a sufficiently long name, exhausts the thread stack. Elasticsearch treats a stack overflow as an unrecoverable condition and shuts the node down, so the request terminates the affected node rather than failing gracefully.

Affected products and versions

Product Affected versions Fixed in
Elasticsearch 9.0 9.0.0 → 9.4.4 No fix stated
Elasticsearch 8.0 8.0.0 → 8.19.19 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