FKIE_CVE-2026-59109

Vulnerability from fkie_nvd - Published: 2026-08-13 17:17 - Updated: 2026-10-24 16:10
Severity
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
SQL injection in the Zalktis accounting application via trading-partner-controlled text fields in received electronic invoices. When importing a received e-invoice (UBL/PEPPOL) or an e-commerce export, Zalktis concatenates partner-controlled values directly into SQL statement text using string concatenation, with neither parameterised queries nor escaping. The application's own escaping helper, Dazadi.sql_txt(), is not invoked on these code paths, so a party that sends an invoice can break out of the string literal and alter the query logic. This issue affects Zalktis: before 2026.1.586 and before 2026.2.592.
References
a6d3dc9e-0591-4a13-bce7-0f5b31ff6158https://cvd.cert.lv/disclosed/vuln-all-631428755
a6d3dc9e-0591-4a13-bce7-0f5b31ff6158https://offseq.com/en/research/zalktis-cve-2026-59109
134c704f-9b21-4f2e-91b3-4a467353bcc0https://offseq.com/en/research/zalktis-cve-2026-59109/
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows"
          ],
          "product": "Zalktis",
          "vendor": "Zalktis Programmas (SIA \"Zalktis Programmas\")",
          "versions": [
            {
              "lessThan": "2026.1.586",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "2026.2.592",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "SQL injection in the Zalktis accounting application via\ntrading-partner-controlled text fields in received electronic invoices. When\nimporting a received e-invoice (UBL/PEPPOL) or an e-commerce export, Zalktis\nconcatenates partner-controlled values directly into SQL statement text using\nstring concatenation, with neither parameterised queries nor escaping. The\napplication\u0027s own escaping helper,\u00a0Dazadi.sql_txt(),\nis not invoked on these code paths, so a party that sends an invoice can break\nout of the string literal and alter the query logic.\n\n\n\n\n\n\n\n\n\nThis issue affects Zalktis: before 2026.1.586 and before 2026.2.592."
    },
    {
      "lang": "es",
      "value": "Inyecci\u00f3n SQL en la aplicaci\u00f3n de contabilidad Zalktis a trav\u00e9s de campos de texto controlados por el socio comercial en facturas electr\u00f3nicas recibidas. Al importar una factura electr\u00f3nica recibida (UBL/PEPPOL) o una exportaci\u00f3n de comercio electr\u00f3nico, Zalktis concatena valores controlados por el socio directamente en el texto de la sentencia SQL utilizando concatenaci\u00f3n de cadenas, sin consultas parametrizadas ni escape. El propio ayudante de escape de la aplicaci\u00f3n, Dazadi.sql_txt(), no se invoca en estas rutas de c\u00f3digo, por lo que una parte que env\u00eda una factura puede salir del literal de cadena y alterar la l\u00f3gica de la consulta.\n\nEste problema afecta a Zalktis: antes de 2026.1.586 y antes de 2026.2.592."
    }
  ],
  "id": "CVE-2026-59109",
  "lastModified": "2026-10-24T16:10:00.153",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 8.7,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "PASSIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-59109",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-14T17:46:01.133135Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-13T17:17:29.207",
  "references": [
    {
      "source": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158",
      "url": "https://cvd.cert.lv/disclosed/vuln-all-631428755"
    },
    {
      "source": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158",
      "url": "https://offseq.com/en/research/zalktis-cve-2026-59109"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://offseq.com/en/research/zalktis-cve-2026-59109/"
    }
  ],
  "sourceIdentifier": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        },
        {
          "lang": "en",
          "value": "CWE-89"
        }
      ],
      "source": "a6d3dc9e-0591-4a13-bce7-0f5b31ff6158",
      "type": "Secondary"
    }
  ]
}



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