CVE record · CVE-2026-103902

DigiDoc improper signature verification

CVSS 7.5 HighEPSS 0.0015 · 3rd percentile

Published by the CVE Program (CNA: ENISA) at 12 Oct 2026, 10:25 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
DigiDoc	libdigidocpp	affected 4.0.0 to before 4.5.0 semver Other versions: unaffected
DigiDoc	DigiDoc4	affected 4.6.0 to before 4.11.0 semver Other versions: unaffected
DigiDoc	DigiDoc Android	affected 2.7.0 to before 3.1.0 semver Other versions: unaffected
DigiDoc	DigiDoc iOS	affected 2.7.0 to before 3.1.0 semver Other versions: unaffected

Identifiers: CVE-2026-103902
CNA: ENISA
Weakness (CWE): CWE-347
Tags: libdigidocpp
DigiDoc4
DigiDoc Android
DigiDoc iOS
Weak cryptography or TLS
Published: 12 Oct 2026
Updated: 15 Oct 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
7.5	High	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	CNA (ENISA)

CISA KEV Not listed.
EPSS 0.0015, the 3rd percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 12 Oct 2026. New records show when each source confirmed them.

Sources

References from the CNA

github.com/open-eid/libdigidocpp/pull/735 patch
www.id.ee/en/article/id-tarkvara-uus-versioon-267-on-avalikustatud/ government-resource

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.