Servers and applications
CVE-2026-72639
Elasticsearch does not enforce an upper bound on a user-supplied count accepted by a search highlighting option, and the allocation derived from that count is not accounted against any circuit breaker. An authenticated user holding only read privileges on a single searchable index can submit one small search request that causes the node to reserve an excessively large internal data structure.…
- Severity
- Medium 6.5
- Published
- 13 Aug 2026
- Last changed
- 1 Sept 2026
- Added to UpHeron
- 21 Oct 2026
- Fixed in
- 8.19.20, 9.4.5, 9.5.1
- Sources
- NVD
Affected software
| Software | Affected versions |
|---|---|
ElasticsearchServers and applications · cpe:a:elastic:elasticsearch |
|