CVE-2026-74046

mediumpriority · track · 0EPSS 0.006 · 48 %ileDEUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.58% (48th) EPSS

CVSS 4.9 · medium

Is it mine?

3 products

Check your exposure

Who says so?

2 sources

cert_bund · nvd

EPSS · scored 2026-10-27

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

Technical severity, 0–10. One row per scoring source.

6.9

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:Hsecondary · disclosure@vulncheck.comexploitability 1.2 · impact 3.6

v4.06.9mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · disclosure@vulncheck.com

v4.04.6mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: no · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-409US

affected products (3)

Products and version ranges known to be affected.

Open Source Wazuh <4.14.7all versionscert_bundDE
Open Source Wazuh< 4.14.7cert_bundDE
wazuh wazuh4.4.0 → 4.14.7nvdUScpe:2.3:a:wazuh:wazuh:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-2883Wazuh: Mehrere SchwachstellenDeutsch2026-08-17csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Wazuh ausnutzen, um Dateien zu manipulieren, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um einen SQL-Injection Angriff durchzuführen, und um beliebigen Programmcode auszuführen.

sources

Which sources assert this record, and when.

cert_bund nvd NVD CVE.org MITRE

published 2026-08-18modified 2026-10-22

references (3) nvd

External citations — patches, advisories, analysis.

https://github.com/wazuh/wazuh/pull/37119Issue TrackingPatch
https://github.com/wazuh/wazuh/security/advisories/GHSA-mr7j-w2m4-vw5jExploitMitigationVendor Advisory
https://www.vulncheck.com/advisories/wazuh-dos-via-fdecompress-files-zip-bombThird Party Advisory

scry

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