6.9

CVE-2026-74046

Exploit

Wazuh 4.4.0 < 4.14.7 DoS via fdecompress_files() Zip Bomb

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Wazuh ≫ Wazuh Version >= 4.4.0 < 4.14.7
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.32% 0.244
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
disclosure@vulncheck.com 6.9 0 0
CVSS: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:X
disclosure@vulncheck.com 4.9 1.2 3.6
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE-409 Improper Handling of Highly Compressed Data (Data Amplification)

The product does not handle or incorrectly handles a compressed input with a very high compression ratio that produces a large output.

https://github.com/wazuh/wazuh/security/advisories/GHSA-mr7j-w2m4-vw5j
Vendor Advisory
Exploit
Mitigation
https://github.com/wazuh/wazuh/pull/37119
Patch
Issue Tracking
https://www.vulncheck.com/advisories/wazuh-dos-via-fdecompress-files-zip-bomb
Third Party Advisory