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CVE-2026-115290— Uncontrolled Recursion in Elasticsearch Leading to Denial of Service

Quick assessment

Affected
Elastic Elasticsearch
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Elasticsearch 中存在不受控的递归漏洞（CWE-674），攻击者可利用包含嵌套负载的序列化数据（CAPEC-230）引发拒绝服务攻击。任何拥有网络访问权限的非认证攻击者，均可向集群中某节点的远程服务接口发送特制请求，导致该节点终止运行。此攻击无需任何凭据。攻击者还可对每个可访问的节点重复发起此类请求。

CVSS 7.5 · High

Affected Version Matrix 3

VendorProduct Version RangeStatus
Elastic Elasticsearch 8.10.0≤ 8.19.23 affected
9.0.0≤ 9.4.8 affected
9.5.0≤ 9.5.5 affected
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I. Basic Information for CVE-2026-115290

Vulnerability Information
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Vulnerability Title
Uncontrolled Recursion in Elasticsearch Leading to Denial of Service
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的递归
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Elastic Elasticsearch 8.10.0 ~ 8.19.23 -

II. Public POCs for CVE-2026-115290

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III. Intelligence Information for CVE-2026-115290

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Other References for CVE-2026-115290 (1)

Same Patch Batch · Elastic · 2026-11-03 · 12 CVEs total

CVE-2026-115714 7.4 HIGH Improper Certificate Validation in Elastic Docker Images Leading to Interception of TLS Co
CVE-2026-115294 7.3 HIGH Improper Limitation of a Pathname to a Restricted Directory in Kibana Leading to Unauthori
CVE-2026-115297 6.5 MEDIUM NULL Pointer Dereference in Packetbeat Leading to Denial of Service
CVE-2026-115715 6.5 MEDIUM Allocation of Resources Without Limits or Throttling in Elasticsearch Leading to Denial of
CVE-2026-115293 6.5 MEDIUM Insertion of Sensitive Information Into Sent Data in Kibana Leading to Credential Disclosu
CVE-2026-115716 6.5 MEDIUM Allocation of Resources Without Limits or Throttling in APM Server Leading to Denial of Se
CVE-2026-115298 4.3 MEDIUM Incorrect Authorization in Elasticsearch Leading to Information Disclosure
CVE-2026-115295 4.3 MEDIUM Authorization Bypass Through User-Controlled Key in Kibana Leading to Information Disclosu
CVE-2026-115292 4.3 MEDIUM Authorization Bypass Through User-Controlled Key in Kibana Leading to Information Disclosu
CVE-2026-115289 4.3 MEDIUM Use of Multiple Resources with Duplicate Identifier in APM Server Leading to Information D
CVE-2026-115710 4.2 MEDIUM Use of Cache Containing Sensitive Information in Elasticsearch Leading to Information Disc

IV. Related Vulnerabilities

Same product: Elasticsearch
Same vendor: Elastic
Same weakness: CWE-674