VULNERABILITY INTELLIGENCE

CVE-2026-72686

CVSS score6.5 MEDIUM
EPSS probability0.57%
CISA KEVNot currently listed
Published2026-08-13
Last modified2026-09-01
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

A flaw in Elasticsearch allows a low-privileged authenticated user to submit a single request containing a crafted user-supplied input. A specific internal component validates the input using a recursive routine and applies no bound to the length of the value being validated, so the validation causes the thread to exhaust its stack. The resulting fatal error is not handled by the surrounding execution paths and terminates the affected node process, producing a denial of service.

Weakness classification

  • security@elastic.co: CWE-674

Primary references