CVEvulnerability

CVE-2026-72686

6.5 MEDIUM Published 2026-08-13 Modified 2026-09-01 Official page ↗
Status
Analyzed
Published
2026-08-13
Last modified
2026-09-01
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-674

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.

Affected configurations

• elastic elasticsearch (>= 8.0.0 < 8.19.20) • elastic elasticsearch (>= 9.0.0 < 9.4.5) • elastic elasticsearch (>= 9.5.0 < 9.5.1)

Related

Weakness · CWE (1)

  • CWE-674 Uncontrolled Recursion weakness

References