CVE-2026-78594: CWE-409 Improper Handling of Highly Compressed Data (Data Amplification) in Elastic Apm Server
Improper Handling of Highly Compressed Data (CWE-409) in APM Server can lead to a persistent denial of service via Excessive Allocation (CAPEC-130). An authenticated user with write access to source map content could store specially crafted, highly compressed content that exhausts the memory available to APM Server when it is later processed, terminating the process. The condition recurs on every restart until the stored content is removed.
CVE-2026-78594: CWE-409 Improper Handling of Highly Compressed Data (Data Amplification) in Elastic Apm Server
Description
Improper Handling of Highly Compressed Data (CWE-409) in APM Server can lead to a persistent denial of service via Excessive Allocation (CAPEC-130). An authenticated user with write access to source map content could store specially crafted, highly compressed content that exhausts the memory available to APM Server when it is later processed, terminating the process. The condition recurs on every restart until the stored content is removed.
CVSS v3.1
Score 4.9medium
Affected software
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- elastic
- Date Reserved
- 2026-08-24T21:13:51.299Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a983847acd9273b495d15d8
Added to database: 09/02/2026, 14:52:55 UTC
Last updated: 09/03/2026, 01:05:48 UTC
Views: 11
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