Unrated severityNVD Advisory· Published Jun 28, 2026· Updated Jun 29, 2026
78 xiaozhi-esp32 MCP Response mcp_server.cc ParseMessage improper synchronization
CVE-2026-13489
Description
A weakness has been identified in 78 xiaozhi-esp32 up to 2.2.6. Affected by this issue is the function ParseMessage of the file main/mcp_server.cc of the component MCP Response Handler. This manipulation causes improper synchronization. Remote exploitation of the attack is possible. The attack's complexity is rated as high. The exploitation is known to be difficult. The exploit has been made available to the public and could be used for attacks. The pull request to fix this issue awaits acceptance.
Affected products
1- Range: <=2.2.6
Patches
Vulnerability mechanics
References
6- github.com/78/xiaozhi-esp32/pull/2021mitreissue-trackingpatch
- github.com/78/xiaozhi-esp32/issues/2020mitreexploitissue-tracking
- vuldb.com/cve/CVE-2026-13489mitrethird-party-advisory
- vuldb.com/submit/838198mitrethird-party-advisory
- vuldb.com/vuln/374486mitrevdb-entrytechnical-description
- vuldb.com/vuln/374486/ctimitresignaturepermissions-required
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