CVE-2026-110972

Płatnik performs client-side authentication

Risk score: 52/100
CVSS: 8.6 v4.0
Published: 30 Oct 2026

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What to know

What it is: Płatnik performs client-side authentication. An attacker with access to any application instance connected to the backend server can bypass the login verification process and authenticate as an arbitrary user. This issue was fixed in metric 242 in version 10.02.002.
Affected: See advisory
Fix: Apply the vendor's security update; see the linked advisory.
Exploitation: No known exploitation

Why it is Yellow

CVSS 8.6 high

References

https://cert.pl/posts/2026/10/CVE-2026-110970
https://www.zus.pl/firmy/program-platnik/o-programie-platnik

Original description

Płatnik performs client-side authentication. An attacker with access to any application instance connected to the backend server can bypass the login verification process and authenticate as an arbitrary user. This issue was fixed in metric 242 in version 10.02.002.

Last activity 30 Oct 2026. Patch Forecast updates every hour.