CVE-2026-93570
High
Description
Szafir and Szafir Weryfikująca are vulnerable to XML External Entity (XXE) injection. When a user signs or verify a crafted XML file containing a `DOCTYPE` with an external DTD reference, the parser processes external entities, allowing an attacker to read arbitrary files from the victim's filesystem. This issue was fixed in Szafir version 2.0 build 708. Szafir Weryfikująca is no longer supported (End of Life) and has not been fixed.
SeverityHigh
CVSS8.2
Exploit probability—
ProductSzafir
PublishedOct 29, 2026
First seenNov 4, 2026
Weakness typeCWE-611XML external entity (XXE)
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Krajowa Izba Rozliczeniowa Szafir | v ≤ 2.0.0 | — |
| Krajowa Izba Rozliczeniowa Szafir Weryfikująca | v ≤ 1.0 | — |
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