Vulnerability · Published Aug 10, 2026 · Assigned by ENISA
CVE-2026-59112Signature validation vulnerability affecting DigiDoc applications
Medium 4.4
In plain English
A medium-severity security flaw in DigiDoc from Estonian Information System Authority (RIA). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:24.04:LTS | libdigidoc | no fix listed | UBUNTU-CVE-2026-59112 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Estonian Information System Authority (RIA) | libdigidocpp | 4.1.0 – before 4.2.1 |
| Estonian Information System Authority (RIA) | DigiDoc4 | 4.7.0 – before 4.8.2 |
| Estonian Information System Authority (RIA) | DigiDoc | 2.7.0 – before 2.7.2 |
| Estonian Information System Authority (RIA) | DigiDoc | 2.8.0 – before 2.8.1 |
Weakness: CWE-347, CWE-754 · Vector: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P