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6.5 Medium

CVE-2026-72684 A flaw in Elasticsearch allows an authenticated user holding only read privileges to submit a small search request…

Description

A flaw in Elasticsearch allows an authenticated user holding only read privileges to submit a small search request containing a crafted user-supplied input. Processing that input causes a specific internal component to allocate memory without any upper bound, and the allocation occurs outside the scope of the existing memory accounting controls that were intended to constrain it. The resulting out-of-memory condition is fatal and terminates the affected node process, causing a denial of service.

Affected products and versions

Product Affected versions Fixed in
Elasticsearch 9.0 9.0.0 → 9.4.4 No fix stated
Elasticsearch 8.0 8.0.0 → 8.19.19 No fix stated

References

Timeline

  1. Published
  2. Last modified

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