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Medium · 4.3 CVE-2026-115289 EUVD-2026-116071GHSA-w3jx-fg2m-w3g8

Use of Multiple Resources with Duplicate Identifier in APM Server Leading to Information Disclosure

Published Nov 3, 2026 · Updated Nov 3, 2026 · Assigned by elastic

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.

Affected products

VendorProductAffectedFixed
Elastic APM Server 8.0.0 – ≤ 8.19.23, 9.0.0 – ≤ 9.4.8, 9.5.0 – ≤ 9.5.5 —

References