CVE-2026-103902: libdigidocpp 4.0.0 to before 4.5.0; +3 more affected products

Affected technology

libdigidocpp · 4.0.0 to before 4.5.0
DigiDoc

DigiDoc4 · 4.6.0 to before 4.11.0
DigiDoc

DigiDoc Android · 2.7.0 to before 3.1.0
DigiDoc

DigiDoc iOS · 2.7.0 to before 3.1.0
DigiDoc

Component: Not specified by the source

Attack conditions (Source advisory, CVSS 3.1): Network (remote) · No privileges required · No user interaction required

What an attacker can do

An attacker can create forged digital signatures that are displayed a valid by affected DigiDoc software.This issue affects libdigidocpp: from 4.0.0 before 4.5.0; DigiDoc4: from 4.6.0 before 4.11.0; DigiDoc Android: from 2.7.0 before 3.1.0; DigiDoc iOS: from 2.7.0 before 3.1.0. Source advisory’s CVSS 3.1 assessment (base score 7.5/10) rates confidentiality and availability impact as none; integrity impact as high.