SEPTEMBER 5, 2026
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Case File

CVE-2026-78594

MEDIUM · CVSS 4.9 EPSS 0.25%

Source: NVD + CISA KEV + EPSS · Published 2026-09-02 · Last synced 2026-09-05

CyberRota Analysis

AI-Generated

The vulnerability allows authenticated users with write access to APM Server to exploit improper handling of highly compressed data, leading to persistent denial of service through excessive memory allocation. This results in the APM Server process being terminated and can recur upon each restart until the malicious content is deleted. Organizations using APM Server should prioritize addressing this issue to prevent service disruptions.

CVE
CVE-2026-78594
Severity
MEDIUM
CVSS
4.9
EPSS
0.25%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)