CVE-2026-44901
During a distributed API merge, attacker-controlled type names are resolved through Python builtins without an allowlist.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.65%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 8.4 HIGHCVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 0.65% probability · 49th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Source
- security-advisories@github.com
References
- https://github.com/wazuh/wazuh/commit/b29849f8abb08d78f257e6106b6111a8a1b0e621
- https://github.com/wazuh/wazuh/pull/35757
- https://github.com/wazuh/wazuh/releases/tag/v4.14.6
- https://github.com/wazuh/wazuh/releases/tag/v5.0.0-beta2
- https://github.com/wazuh/wazuh/security/advisories/GHSA-8c6v-7g3w-prrq
- https://github.com/wazuh/wazuh/security/advisories/GHSA-8c6v-7g3w-prrq
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.