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    CVE-2026-59112

    Improper verification of cryptographic signature and Improper Check for Unusual or Exceptional Conditions vulnerability in Estonian Information System Authority (RIA) libdigidocpp, DigiDoc4, DigiDoc on Android, and DigiDoc on iOS. This issue affects libdigidocpp: from 4.1.0 before 4.2.1; DigiDoc4: from 4.7.0 before 4.8.2; DigiDoc on Android: from 2.7.0 before 2.7.2; DigiDoc on iOS: from 2.8.0 before 2.8.1.

    Published:Aug 10, 2026
    Last Modified:Aug 11, 2026
    EPS:Aug 10, 2026
    EPSS Score:0.00117
    CVSS Score:4.4

    Affected Products

    Vendor
    Estonian Information System Authority (ria)
    Product
    Digidoc
    Vendor
    Estonian Information System Authority (ria)
    Product
    Digidoc4
    Vendor
    Estonian Information System Authority (ria)
    Product
    Libdigidocpp

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-463 Padding Oracle Crypto Attack
    CAPEC-475 Signature Spoofing by Improper Validation

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High