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Multiple Vulnerabilities Discovered in Płatnik Software

Multiple Vulnerabilities Discovered in Płatnik Software

First seen 30 Oct 2026, 17:45 UTC • •

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ThreatCluster AI
ThreatCluster •October 30, 2026 at 21:15 UTC
  • •Three vulnerabilities in Płatnik software disclosed on 2026-10-30.
  • •CVE-2026-110972 allows authentication bypass for attackers with client access.
  • •Płatnik vulnerabilities have been patched in version 10.02.002.

CERT Polska reported three vulnerabilities in the Płatnik software used by the Social Insurance Institution. CVE-2026-110970 involves the use of unencrypted HTTP for updates, allowing Man-In-The-Middle attacks. CVE-2026-110971 relates to a weak password encoding algorithm, making it easy to decode captured passwords. CVE-2026-110972 allows attackers to bypass authentication if they gain access to any client application instance. These vulnerabilities were patched in version 10.02.002. The issues were disclosed on the same day as the patch release, with acknowledgments to the researcher Wojciech Giełda for reporting two of the vulnerabilities.

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Timeline

2026-10-30
CVE-2026-110970 published
CERT Polska disclosed a vulnerability in Płatnik using unencrypted HTTP for updates, allowing Man-In-The-Middle attacks.
Cert.Pl
2026-10-30
CVE-2026-110971 published
Weak password encoding in Płatnik allows easy decoding of captured passwords, reported by CERT Polska.
Cert.Pl
2026-10-30
CVE-2026-110972 published
Płatnik's authentication process can be bypassed by attackers with client access, as disclosed by CERT Polska.
Cert.Pl
2026-10-30
Patch released for Płatnik
Version 10.02.002 was released to address the vulnerabilities CVE-2026-110970, CVE-2026-110971, and CVE-2026-110972.
Cert.Pl

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Common questions

What are the CVEs related to Płatnik?
The vulnerabilities are CVE-2026-110970, CVE-2026-110971, and CVE-2026-110972.
Have these vulnerabilities been exploited?
No active exploitation has been reported; the vulnerabilities were disclosed and patched on the same day.
What should users of Płatnik do?
Users should update to version 10.02.002 to mitigate the vulnerabilities.