CVE-2026-0809

Medium CVSS: 6.3

Use of a custom token encoding algorithm in Streamsoft Prestiż software allows the value of the KSeF (Krajowy System e-Faktur) token to be guessed after analyzing how tokens with know values are encoded.

This issue was fixed in version 20.0.380.92.

Vendor

Product

CWE

CWE-261

Yayın Tarihi

2026-03-12 13:16:00

Güncelleme

2026-03-12 21:07:53

Source Identifier

cvd@cert.pl

KEV Date Added

Kategoriler

CWE-261 MEDIUM 2026

Referanslar

https://cert.pl/posts/2026/03/CVE-2026-0809 https://www.streamsoft.pl/streamsoft-prestiz/