Malla: Stored XSS via Meshtastic node names in multiple frontend pages
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| zenitraM | malla | before 4086e2b5f61615a813b70b25bc76095083552135 | 4086e2b5f61615a813b70b25bc76095083552135 | Patch available | CNA |
| — | malla (PyPI) | up to 0.1.7 | — | No fix listed | GHSA-ch57-39q2-4crm |
- malla VendorzenitraM Affected before 4086e2b5f61615a813b70b25bc76095083552135 Fixed in 4086e2b5f61615a813b70b25bc76095083552135 Patch available CNA
- malla (PyPI) Vendor— Affected up to 0.1.7 Fixed in — No fix listed GHSA-ch57-39q2-4crm
Remediation
- Fix · CNA malla (zenitraM) Fixed in 4086e2b5f61615a813b70b25bc76095083552135
Timeline
- 2026-10-02 Threatist record created from CVE-2026-43980
- 2026-10-03 Alias added: GHSA-ch57-39q2-4crm
References
Sources
- CVE-2026-43980 · CVE Program
- CVE-2026-43980 · NVD
- FIRST EPSS
- GHSA-ch57-39q2-4crm · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences