{"id":"CVE-2026-43980","aliases":["GHSA-ch57-39q2-4crm","PYSEC-2026-2618"],"url":"https://o3.security/vulnerability/CVE-2026-43980","summary":"Malla: Stored XSS via Meshtastic node names in multiple frontend pages","details":"Malla is a web analyzer for Meshtastic networks based on MQTT data. Prior to commit 4086e2b5f61615a813b70b25bc76095083552135, code names (long_name, short_name) received via MQTT are stored in SQLite without sanitization and rendered into the DOM without escaping. Any participant on a public Meshtastic MQTT broker can set a malicious node name that executes JavaScript in the browser of every Malla dashboard visitor. Commit 4086e2b5f61615a813b70b25bc76095083552135 fixes the issue.","published":"2026-08-21T21:17:45.430Z","modified":"2026-08-27T11:31:16.699339723Z","cvss":{"score":6.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"PyPI","name":"malla","fixedVersion":null}],"fix":{"url":"https://github.com/zenitraM/malla/commit/4086e2b5f61615a813b70b25bc76095083552135","label":"zenitraM/malla@4086e2b"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43980.json"},{"type":"ADVISORY","url":"https://github.com/pypa/advisory-database/tree/main/vulns/malla/PYSEC-2026-2618.yaml"},{"type":"ADVISORY","url":"https://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43980"},{"type":"FIX","url":"https://github.com/zenitraM/malla/commit/4086e2b5f61615a813b70b25bc76095083552135"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-27T11:31:16.699339723Z"}}