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CVE-2026-43980

6.3 · MEDIUM

Malla is a web analyzer for Meshtastic networks based on MQTT data.

Published Aug 21, 2026CWE-79EPSS 0.33%

Overview

CVE-2026-43980 is a medium-severity vulnerability. It was published on August 21, 2026 and has a CVSS 3.1 base score of 6.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/pypa/advisory-database/tree/main/vulns/malla/PYSEC-2026-2618.yamlGitHubgithub.com/zenitraM/malla/commit/4086e2b5f61615a813b70b25bc76095083552135GitHubgithub.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crmGitHubgithub.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm

How CyberStrike helps

Frequently asked questions

What is CVE-2026-43980?

CVE-2026-43980 is a medium-severity vulnerability. It was published on August 21, 2026 and has a CVSS 3.1 base score of 6.3 (MEDIUM).

How severe is CVE-2026-43980?

This vulnerability has a CVSS 3.1 base score of 6.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-43980?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-43980?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-43980 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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