CVE-2026-115289
Medium
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.
SeverityMedium
CVSS4.3
Exploit probability—
ProductAPM Server
PublishedNov 3, 2026
First seenNov 4, 2026
Weakness typeCWE-694CWE-694
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Elastic APM Server | 8.0.0 ≤ v ≤ 8.19.23, 9.0.0 ≤ v ≤ 9.4.8, 9.5.0 ≤ v ≤ 9.5.5 | — |
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