{"id":"CVE-2026-103902","title":"Improper verification of cryptographic signature vulnerability in DigiDoc libdigidocpp, DigiDoc DigiDoc4, DigiDoc DigiDoc Android, and DigiDoc DigiDoc iOS","summary":"Improper verification of cryptographic signature vulnerability in DigiDoc libdigidocpp, DigiDoc DigiDoc4, DigiDoc DigiDoc Android, and DigiDoc DigiDoc iOS. The vulnerability allows an attacker to create forged digital signatures\n that ar…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","cwe":["CWE-347"],"published":"2026-10-12","updated":"2026-10-12","sourceUpdated":"2026-10-12T11:17:08.617","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-103902","references":[{"url":"https://github.com/open-eid/libdigidocpp/pull/735","label":"a6d3dc9e-0591-4a13-bce7-0f5b31ff6158"},{"url":"https://www.id.ee/en/article/id-tarkvara-uus-versioon-267-on-avalikustatud/","label":"a6d3dc9e-0591-4a13-bce7-0f5b31ff6158"}],"tags":["nvd"],"ingestedAt":"2026-10-12T14:50:34.103Z","slug":"CVE-2026-103902","body":"## Overview\n\nImproper verification of cryptographic signature vulnerability in DigiDoc libdigidocpp, DigiDoc DigiDoc4, DigiDoc DigiDoc Android, and DigiDoc DigiDoc iOS. The vulnerability allows an attacker to create forged digital signatures\n 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}