CVE-2026-13489
78 xiaozhi-esp32 MCP Response mcp_server.cc ParseMessage improper synchronization
- State
- Published
- Severity
- 2.3 Low
- Published
- Jun 28, 2026
- Updated
- Jun 29, 2026
- Reserved
- Jun 27, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 2.3 Low | CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 3.1 Low | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R | VulDB |
| 3.0 | 3.1 Low | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R | VulDB |
| 2.0 | 2.1 Low | AV:N/AC:H/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
- CWE-662 Improper Synchronization
Affected Products
| Product | Versions |
|---|---|
xiaozhi-esp3278 |
|
References
- VDB-374486 | 78 xiaozhi-esp32 MCP Response mcp_server.cc ParseMessage improper synchronizationvdb-entrytechnical-description
- VDB-374486 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-13489 | CVE Analysis and Reportthird-party-advisory
- Submit #838198 | 78 xiaozhi-esp32 36200942cca3f7cbac6c927ce7458bad874297ab Information Exposure / Improper Routingthird-party-advisory
- https://github.com/78/xiaozhi-esp32/issues/2020exploitissue-tracking
- https://github.com/78/xiaozhi-esp32/pull/2021issue-trackingpatch
- https://github.com/78/xiaozhi-esp32/product
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