{"id":"CVE-2026-43980","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-43980","generatedAt":"2026-10-28T02:18:48.989Z","title":"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.","description":"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":"2026-08-21T22:16:38.000Z","lastModified":"2026-10-12T16:10:00.000Z","status":"Deferred","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","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"},"cwe":["CWE-79"],"affected":[],"epss":{"score":0.00325,"percentile":0.25336,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.33%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/malla/PYSEC-2026-2618.yaml","source":"security-advisories@github.com"},{"url":"https://github.com/zenitraM/malla/commit/4086e2b5f61615a813b70b25bc76095083552135","source":"security-advisories@github.com"},{"url":"https://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm","source":"security-advisories@github.com"},{"url":"https://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-43980","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}