Answer in brief
CVE-2026-13489 records a Low severity (CVSS 2.3) vulnerability in 78 xiaozhi-esp32 MCP Response mcp_server.cc ParseMessage improper synchronization. The current sources do not mark it as known exploited. The current feed maps 78/xiaozhi-esp32 (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 2.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps 78/xiaozhi-esp32 (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| 78/xiaozhi-esp32generic | 2.2.0 || 2.2.1 || 2.2.2 || 2.2.3 || 2.2.4 || 2.2.5 || 2.2.6 | Not reported |
Published upstream
Jun 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 28, 2026
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.
Quoted source text, attributed separately from HOL analysis.