CVE-2026-115290
High
Description
Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via Serialized Data with Nested Payloads (CAPEC-230). An unauthenticated attacker with network access to the remote cluster server interface of a node can send a specially crafted request that causes the node to terminate. No credentials are required. The attacker can repeat the request against each reachable node.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Elasticsearch
PublishedNov 3, 2026
First seenNov 4, 2026
Weakness typeCWE-674CWE-674
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Elastic Elasticsearch | 8.10.0 ≤ v ≤ 8.19.23, 9.0.0 ≤ v ≤ 9.4.8, 9.5.0 ≤ v ≤ 9.5.5 | — |
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