VULNERABILITY INTELLIGENCE

CVE-2026-78594

CVSS score4.9 MEDIUM
EPSS probability0.50%
CISA KEVNot currently listed
Published2026-09-02
Last modified2026-09-03
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

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.

Weakness classification

  • security@elastic.co: CWE-409

Primary references