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.
Fix
Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.
Change history 1
- First seenCVSS 2.9NVD modified 2026-10-25 17:10
Affected (CPE criteria) 0
NVD has not attached CPE configurations yet.
References 8
- https://github.com/78/xiaozhi-esp32/
- https://github.com/78/xiaozhi-esp32/commit/e182471f8c5a22434346bd98da34d3b66c8c8b3e
- https://github.com/78/xiaozhi-esp32/issues/2022
- https://github.com/78/xiaozhi-esp32/pull/2023
- https://vuldb.com/cve/CVE-2026-13491
- https://vuldb.com/submit/838439
- https://vuldb.com/vuln/374488
- https://vuldb.com/vuln/374488/cti