CVE-2026-0809

N/A

Description

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 Details

CVSS v3.1 ScoreN/A

Published3/12/2026

Last Modified3/12/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-261

References

https://cert.pl/posts/2026/03/CVE-2026-0809(cvd@cert.pl)

https://www.streamsoft.pl/streamsoft-prestiz/(cvd@cert.pl)

IOC Correlations

No correlations recorded

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