CVE-2024-23448: APM Server Insertion of Sensitive Information into Log File

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-02-07 · updated 2026-06-17
Weakness: CWE-532

Description

An issue was discovered whereby APM Server could log at ERROR level, a response from Elasticsearch indicating that indexing the document failed and that response would contain parts of the original document. Depending on the nature of the document that the APM Server attempted to ingest, this could lead to the insertion of sensitive or private information in the APM Server logs.

Affected products

Elastic APM Server: before 8.12.1 — fixed in 8.12.1

How to fix

Upgrade to a fixed version: Elastic APM Server 8.12.1. Check the vendor advisory for mitigations.

References

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