6.9

CVE-2026-74046: wazuh

CVSS: 6.9v4.0MediumAnalyzed
Published 18-08-2026Last modified 01-10-2026
Open JSON

Vulnerability summary

CVE-2026-74046 is a medium (CVSS 6.9) vulnerability in wazuh. EPSS estimates a 0.58% chance of exploitation in the next 30 days, higher than 47% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
38/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.9/10
010
Medium · v4.0 (CVE.org)
EPSS score
0.58%
0%100%
Low · +0.24 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 18-08-2026
    PublishedVulnerability first disclosed.
  2. 01-10-2026
    Last modifiedVulnerability information updated.

Description

Wazuh 4.4.0 before 4.14.7 contains a denial of service vulnerability in the fdecompress_files() function within cluster.py that allows authenticated cluster peers to exhaust memory by supplying a malicious synchronization archive without decompressed size limits. Attackers holding a valid cluster Fernet key can upload a small, highly compressed zip bomb archive that forces wazuh-clusterd on the master node to decompress the full payload into memory, causing memory exhaustion and service disruption.

CVSS metrics

4 scores · 2 sources · 2 versions

EPSS trend

Probability

0.58%

Chance of exploitation in the next 30 days

Percentile

47%

Versus all other CVEs

30-day change

+0.24 pp

From 0.34% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.58%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Wazuh

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Wazuh2 products

1 vendor · 2 products

References

3 links