DigiDoc improper signature verification
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 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.
CVE-2026-103902
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-103902
libdigidocpp
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
DigiDoc4
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
DigiDoc Android
Source reference: /containers/cna/affected/2/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
DigiDoc iOS
Source reference: /containers/cna/affected/3/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "DigiDoc",
"product": "libdigidocpp",
"versions": [
{
"status": "affected",
"version": "4.0.0",
"lessThan": "4.5.0",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "DigiDoc",
"product": "DigiDoc4",
"versions": [
{
"status": "affected",
"version": "4.6.0",
"lessThan": "4.11.0",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "DigiDoc",
"product": "DigiDoc Android",
"versions": [
{
"status": "affected",
"version": "2.7.0",
"lessThan": "3.1.0",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
},
{
"vendor": "DigiDoc",
"product": "DigiDoc iOS",
"versions": [
{
"status": "affected",
"version": "2.7.0",
"lessThan": "3.1.0",
"versionType": "semver"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-103902
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #29947 · Revision 1
- Added to Heist Feed
- Publisher date