Zalktis: SQL injection via partner-controlled fields in imported e-invoices
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- SQL injection
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-89.
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Zalktis Programmas (SIA "Zalktis Programmas") | Zalktis | before 2026.1.586; before 2026.2.592 | 2026.1.586, 2026.2.592 | Patch available | CNA |
- Zalktis VendorZalktis Programmas (SIA "Zalktis Programmas") Affected before 2026.1.586; before 2026.2.592 Fixed in 2026.1.586, 2026.2.592 Patch available CNA
Remediation
- Fix · CNA Zalktis (Zalktis Programmas (SIA "Zalktis Programmas")) Fixed in 2026.1.586, 2026.2.592
Timeline
- 2026-10-02 Threatist record created from CVE-2026-59109
- 2026-10-03 Alias added: GHSA-r3xf-cfg3-3pgx
References
Sources
- CVE-2026-59109 · CVE Program
- CVE-2026-59109 · NVD
- FIRST EPSS
- GHSA-r3xf-cfg3-3pgx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences