6.5
Medium
CVE-2026-72645 Memory Allocation with Excessive Size Value (CWE-789) in Elasticsearch can lead to denial of service via Excessive…
Description
Memory Allocation with Excessive Size Value (CWE-789) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user holding only read privileges on a single index can submit one small, specially crafted search request that causes an excessively large memory allocation, exhausting the JVM heap and terminating the affected node.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Elasticsearch | 9.5.0 | No fix stated |
| Elasticsearch 9.0 | 9.0.0 → 9.4.4 | No fix stated |
| Elasticsearch 8.0 | 8.0.0 → 8.19.19 | No fix stated |
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The 91 CVEs of Elasticsearch →
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6.5
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Use of Cache Containing Sensitive Information (CWE-524) in Elasticsearch can lead to information disclosure and…
4.2
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4.3
Medium
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7.5
High