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CVE-2026-115289— Use of Multiple Resources with Duplicate Identifier in APM Server Leading to Information Disclosure

Quick assessment

Affected
Elastic APM Server
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.

APM Server 中存在“使用具有重复标识符的多个资源”（CWE-694）漏洞，攻击者可通过精心构造的代理配置请求导致信息泄露。已认证的 APM 代理可能会接收到属于其他服务的中央代理配置，直到该缓存配置过期为止。此外，某个服务也可能运行了原本为其他服务设计的中央配置设置（例如采样配置）。

CVSS 4.3 · Medium

Possible ATT&CK Techniques 1 AI

T1562.007

Affected Version Matrix 3

VendorProduct Version RangeStatus
Elastic APM Server 8.0.0≤ 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-2026-115289

Vulnerability Information
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Vulnerability Title
Use of Multiple Resources with Duplicate Identifier in APM Server Leading to Information Disclosure
Source: CVE Program / CVE List V5
Vulnerability Description
Use of Multiple Resources with Duplicate Identifier (CWE-694) in APM Server can lead to information disclosure via a specially crafted agent configuration request. An authenticated APM agent could receive the central agent configuration that belongs to a different service until the cached configuration expires. A service could also run with central configuration settings, such as sampling settings, that were meant for a different service.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用多个具有重复标识的资源
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Elastic APM Server 8.0.0 ~ 8.19.23 -

II. Public POCs for CVE-2026-115289

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III. Intelligence Information for CVE-2026-115289

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Other References for CVE-2026-115289 (1)

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

CVE-2026-115290 7.5 HIGH Uncontrolled Recursion in Elasticsearch Leading to Denial of Service
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-2026-115710 4.2 MEDIUM Use of Cache Containing Sensitive Information in Elasticsearch Leading to Information Disc

IV. Related Vulnerabilities

Same product: APM Server
Same vendor: Elastic
Same weakness: CWE-694