๐Ÿ” CVE Alert

CVE-2026-72679

MEDIUM 6.5

Uncontrolled Recursion in Elasticsearch Leading to Denial of Service

CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th

Elasticsearch does not apply its configurable input length restriction to a user-supplied pattern accepted by an intervals query. Compiling a deeply nested pattern drives unbounded recursion that exhausts the thread stack and raises a fatal error, terminating the Elasticsearch node process and causing a denial of service for that node. An authenticated user holding only read-only privileges on a single searchable index can trigger the condition with one small search request.

CWE CWE-674
Vendor elastic
Product elasticsearch
Ecosystems
Industries
Technology
Published Aug 13, 2026
Last Updated Aug 13, 2026
Stay Ahead of the Next One

Get instant alerts for elastic elasticsearch

Be the first to know when new medium vulnerabilities affecting elastic elasticsearch are published โ€” delivered to Slack, Telegram or Discord.

Get Free Alerts โ†’ Free ยท No credit card ยท 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Affected Versions

Elastic / Elasticsearch
8.19.0 โ‰ค 8.19.19 9.0.0 โ‰ค 9.4.4

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
discuss.elastic.co: https://discuss.elastic.co/t/elasticsearch-8-19-20-9-4-5-security-update-esa-2026-81/389501