CVE-2026-70383

Arbitrary file overwrite vulnerability in DigiDoc4 client

State: Published
Severity: 8.4 High
Published: Aug 20, 2026
Updated: Aug 26, 2026
Reserved: Aug 4, 2026

Description

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in Estonian Information System Authority (RIA) DigiDoc4 client.

This issue affects DigiDoc4: from 4.0.0 before 4.11.0.

Scores

CVSS	Score	Vector	Source
4.0	8.4 High	CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N	ENISA

Weaknesses

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Affected Products

Product	Versions
DigiDoc4Estonian Information System Authority (RIA)	4.0.0 to before 4.11.0Affected

References

https://github.com/open-eid/libdigidocpp/pull/736patch
https://github.com/open-eid/DigiDoc4-Client/pull/1402patch
https://github.com/open-eid/DigiDoc4-Clientproduct

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