CVE-2026-103902DigiDoc improper signature verification
Updated under an hour ago ()
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It affects DigiDoc libdigidocpp and 3 other products. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.15%, higher than 4% of scored CVEs.
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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.
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Weakness (CWE)
- CWE-347
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.15% (percentile 4)
- Assigned by
- ENISA
- NVD analysis
- Deferred
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 12, 2026
Affected products
DigiDoc libdigidocpp digidoc:libdigidocpp (from the name) | from 4.0.0 before 4.5.0 | CNA record |
DigiDoc DigiDoc4 digidoc:digidoc4 (from the name) | from 4.6.0 before 4.11.0 | CNA record |
DigiDoc DigiDoc Android digidoc:android (from the name) | from 2.7.0 before 3.1.0 | CNA record |
DigiDoc DigiDoc iOS digidoc:ios (from the name) | from 2.7.0 before 3.1.0 | CNA record |
References
- https://github.com/open-eid/libdigidocpp/pull/735patch
- https://www.id.ee/en/article/id-tarkvara-uus-versioon-267-on-avalikustatud/government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.