CVE-2026-13491

Description

A vulnerability was detected in 78 xiaozhi-esp32 up to 2.2.6. This vulnerability affects the function Application::GetInstance of the file main/protocols/mqtt_protocol.cc of the component MQTT Goodbye Handler. Performing a manipulation of the argument session_id results in denial of service. The attack is possible to be carried out remotely. The complexity of an attack is rather high. It is stated that the exploitability is difficult. The exploit is now public and may be used. The patch is named e182471f8c5a22434346bd98da34d3b66c8c8b3e. It is recommended to apply a patch to fix this issue.

References

https://vuldb.com/vuln/374488/cti

https://vuldb.com/vuln/374488

https://vuldb.com/submit/838439

https://vuldb.com/cve/CVE-2026-13491

https://github.com/78/xiaozhi-esp32/pull/2023

https://github.com/78/xiaozhi-esp32/issues/2022

https://github.com/78/xiaozhi-esp32/commit/e182471f8c5a22434346bd98da34d3b66c8c8b3e

https://github.com/78/xiaozhi-esp32/

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4