CVE-2026-72638CWE-674

CVE-2026-72638

Medium · published August 14, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
35.2
In the wild
Unconfirmed
What it is

Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via Input Data Manipulation (CAPEC-153). An authenticated user holding only low-privileged index creation permissions can submit a single request containing a specially crafted, malformed custom analysis definition that is resolved recursively without a cycle or depth check, exhausting the thread stack and terminating the affected node.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00420 · 35.2th percentile
Weakness
CWE-674 · Uncontrolled Recursion
Published
2026-08-14T00:17Z
Affected products (2)
ProductVersionsFixed in
elastic/elasticsearch≥ 8.0.0, < 8.19.208.19.20
elastic/elasticsearch≥ 9.0.0, < 9.4.59.4.5
References (1)
https://discuss.elastic.co/t/elasticsearch-8-19-20-9-4-5-security-update-esa-2026-119/389498 · [email protected]
EPSS history
Timeline
  • 13 AUG 19:13Z
    Uncontrolled Recursion in Elasticsearch Leading to Denial of Service
    cvelistv5