CVE-2026-115289VulnerabilityPublished 3 Nov 2026

Use of Multiple Resources with Duplicate Identifier in APM Server can lead to information disclosure via a

Source GCVE Database

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Authoritative record:CVE-2026-115289· Medium 4.3

Not known to be exploited · CVSS 4.3 Medium.

Data as of 3 Nov 2026, 19:45 UTC

CVSS 3.1 base score

4.3Medium

How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none

CVSS scores by source
CNA (elastic)	CVSS 3.1	4.3

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: None
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 3 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 3 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-w3jx-fg2m-w3g8

What to do

Affected software

Product	Affected	Fixed in
ElasticAPM Server	Affected >=8.0.0 <=8.19.23 >=9.0.0 <=9.4.8 >=9.5.0 <=9.5.5	Fixed in–

AI-suggested

In the absence of an official fix, monitor vendor communications for updates. No specific mitigations or workarounds are provided in the available data.

Description

CVE-2026-115289 is a vulnerability in APM Server where multiple resources share duplicate identifiers, leading to potential information disclosure. An authenticated APM agent might receive configuration data intended for a different service until the cache expires, causing misapplication of configuration settings such as sampling parameters.

Impact

The impact is limited to information disclosure where an authenticated APM agent may receive configuration data intended for a different service. This could lead to exposure of configuration details such as sampling settings, but does not affect integrity or availability. The vulnerability requires authentication and network access to the APM Server.

Summary

This vulnerability involves the use of multiple resources with duplicate identifiers (CWE-694) in APM Server. It allows an authenticated APM agent to receive central agent configuration data that belongs to a different service due to caching behavior. Consequently, a service could operate with configuration settings meant for another service, potentially exposing sensitive information or causing unintended behavior. The vulnerability has a CVSS 3.1 base score of 4.3, indicating a medium severity level. There is no indication of public exploits or known active exploitation in the wild.

CWE-694Use of Multiple Resources with Duplicate Identifier (opens in a new tab)
Base weakness
The product uses multiple resources that can have the same identifier, in a context in which unique identifiers are required.
Architecture and Design
Where possible, use unique identifiers. If non-unique identifiers are detected, then do not operate any resource with a non-unique identifier and report the error appropriately.
OWASP Cheat Sheets
Abuse Case (opens in a new tab)
Deserialization (opens in a new tab)
OWASP ASVS 4.0.3
V1.5.1 (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 3 Nov 2026, 19:45 UTC

WeaknessesCWE-694

Technical details

References

Community reviews

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