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6.5 Medium

CVE-2026-72679 Elasticsearch does not apply its configurable input length restriction to a user-supplied pattern accepted by an…

Description

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.

Affected products and versions

Product Affected versions Fixed in
Elasticsearch 9.0 9.0.0 → 9.4.4 No fix stated
Elasticsearch 8.19 8.19.0 → 8.19.19 No fix stated
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