CVE-2026-59109

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://cvd.cert.lv/disclosed/vuln-all-631428755
https://offseq.com/en/research/zalktis-cve-2026-59109
https://offseq.com/en/research/zalktis-cve-2026-59109/

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-13 17:17

Updated : 2026-09-01 21:07

NVD link : CVE-2026-59109

Mitre link : CVE-2026-59109

CVE.ORG link : CVE-2026-59109

JSON object : View

Products Affected

No product.

CWE

CWE-20

Improper Input Validation

CWE-89

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

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