FKIE_CVE-2026-43980

Vulnerability from fkie_nvd - Published: 2026-08-21 22:16 - Updated: 2026-10-12 16:10
Severity
6.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
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.
References
security-advisories@github.comhttps://github.com/pypa/advisory-database/tree/main/vulns/malla/PYSEC-2026-2618.yaml
security-advisories@github.comhttps://github.com/zenitraM/malla/commit/4086e2b5f61615a813b70b25bc76095083552135
security-advisories@github.comhttps://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "malla",
          "vendor": "zenitraM",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 4086e2b5f61615a813b70b25bc76095083552135"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    },
    {
      "lang": "es",
      "value": "Malla es un analizador web para redes Meshtastic basado en datos MQTT. Antes del commit 4086e2b5f61615a813b70b25bc76095083552135, los nombres de c\u00f3digo (long_name, short_name) recibidos a trav\u00e9s de MQTT se almacenan en SQLite sin sanitizaci\u00f3n y se renderizan en el DOM sin escape. Cualquier participante en un broker MQTT p\u00fablico de Meshtastic puede establecer un nombre de nodo malicioso que ejecuta JavaScript en el navegador de cada visitante del panel de control de Malla. El commit 4086e2b5f6161615a813b70b25bc76095083552135 soluciona el problema."
    }
  ],
  "id": "CVE-2026-43980",
  "lastModified": "2026-10-12T16:10:00.220",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 6.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.4,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-43980",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-24T20:10:26.577504Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-21T22:16:37.563",
  "references": [
    {
      "source": "security-advisories@github.com",
      "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": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/zenitraM/malla/security/advisories/GHSA-ch57-39q2-4crm"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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