Root code execution via callable object deserialization
Published Mar 17, 2026 · Updated Mar 17, 2026
Insecure deserialization in Wazuh Manager 4.0.0 through 4.14.2 allows remote authenticated users to execute code on the master node. The as_wazuh_object() JSON object hook imports an attacker-selected module and returns an arbitrary callable, which DistributedAPI invokes with supplied arguments. Exploitation requires control of an authenticated cluster worker and yields command execution on the Linux master with root privileges.
Summary
What happened
Insecure deserialization in Wazuh Manager 4.0.0 through 4.14.2 allows remote authenticated users to execute code on the master node. The as_wazuh_object() JSON object hook imports an attacker-selected module and returns an arbitrary callable, which DistributedAPI invokes with supplied arguments. Exploitation requires control of an authenticated cluster worker and yields command execution on the Linux master with root privileges.
The record
- CVE
- CVE-2026-25769
- Published
- Mar 17, 2026
- Updated
- Mar 17, 2026
- Vendor
- Wazuh
- Product
- Wazuh
- Classifications
- CWE-502, T1210
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 17, 2026CVE publishedPublication date reported by the CVE source.
- Mar 17, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=>= 4.0.0, < 4.14.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Wazuh Cluster RCE proof of conceptfunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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