Arbitrary file overwrite vulnerability in DigiDoc4 client (CVE-2026-70383) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-70383

Arbitrary file overwrite vulnerability in DigiDoc4 client

Answer in brief

CVE-2026-70383 records a Unknown severity vulnerability in Arbitrary file overwrite vulnerability in DigiDoc4 client. The current sources do not mark it as known exploited. The current feed maps Estonian Information System Authority (RIA)/DigiDoc4 (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 20, 2026Updated Aug 20, 2026Source checked Aug 20, 2026First seen by HOL Aug 20, 2026Material review Aug 20, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Estonian Information System Authority (RIA)/DigiDoc4 (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Estonian Information System Authority (RIA)/DigiDoc4generic	>=4.0.0 <4.11.0	4.11.0

Recommended response

Check inventory. Check lockfiles and deployed manifests for Estonian Information System Authority (RIA)/DigiDoc4.
Review the reported fix. Update Estonian Information System Authority (RIA)/DigiDoc4 to 4.11.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 20, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 20, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 20, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.