Malla: Stored XSS via Meshtastic node names in multiple frontend pages

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-43980
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-21 22:16:37 UTC
Updated2026-09-09 21:06:39 UTC
DescriptionMalla 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.

Risk And Classification

Primary CVSS: v3.1 6.3 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

EPSS: 0.002260000 probability, percentile 0.132110000 (date 2026-09-10)

Problem Types: CWE-79 | CWE-79 CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
3.1CNADECLARED6.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA ZenitraM Malla affected < 4086e2b5f61615a813b70b25bc76095083552135 Not specified

References

ReferenceSourceLinkTags
github.com/pypa/advisory-database/tree/main/vulns/malla/PYSEC-2026-2618.... [email protected] github.com
github.com/zenitraM/malla/commit/4086e2b5f61615a813b70b25bc76095083552135 [email protected] github.com
github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
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