CVE-2026-0809

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...

CVE-2026-0809

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...

CVE-2026-0809 Weak KSeF token encoding in Streamsoft Prestiż

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...

CVE-2026-0809

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...

CVE-2026-0809 Weak KSeF token encoding in Streamsoft Prestiż

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...

CVE-2026-0809

CVE-2026-0809 concerns Streamsoft Prestiż. The vulnerability arises from a weak, custom token encoding algorithm used by the software, which enables an attacker to guess the KSeF (Krajowy System e‑Faktur) token after analyzing how tokens with known values are encoded. The issue affects Streamsoft...

PT-2026-24947

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...