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.
CVE-2026-70383
HIGHPre-NVD 8.48.4Trending — 3 sources updated this week
EchelonGraph scoreLOW confidence
This high-severity CVE scores 8.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: secondary
8.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: —CVSS: 8.4Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.4
- EG Score
- 8.4(low)
- EG Risk
- 42(Track)EG Risk 42/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity84% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- —
- EPSS %ILE
- —
- KEV
- Not listed
Published
August 20, 2026
Last Modified
August 20, 2026
Advisory Details (3)
Auto-updated Aug 20, 2026Upstream fix merged — awaiting tagged release. Sources: github_pr.
generic
GitHub - open-eid/DigiDoc4-Client: DigiDoc4 is an application for digitally signing and encrypting documents; the software includes functionality to manage Estonian ID-card - change pin codes etc. · GitHub
https://github.com/open-eid/DigiDoc4-Clientgithub_pr
Cleanup temp file handling
Fix merged in open-eid/DigiDoc4-Client PR #1402 on 2026-07-03 — awaiting tagged release
https://github.com/open-eid/DigiDoc4-Client/pull/1402github_pr
Be more strict with datafile name
Fix merged in open-eid/libdigidocpp PR #736 on 2026-06-30 — awaiting tagged release
https://github.com/open-eid/libdigidocpp/pull/736Vendor Advisories for CVE-2026-70383(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 4× in last 7d / 4× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-08-21 02:54 UTCGHSA enrichment
- 2026-08-20 14:25 UTCEG score recompute
- 2026-08-20 14:07 UTCEG score recompute
- 2026-08-20 14:07 UTCMITRE cvelistV5first tracked
Frequently asked(4)
What is CVE-2026-70383?
CVE-2026-70383 is a high vulnerability published on August 20, 2026. 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.
When was CVE-2026-70383 disclosed?
CVE-2026-70383 was first published in the National Vulnerability Database on August 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
What is the CVSS score of CVE-2026-70383?
CVE-2026-70383 has a CVSS v3 base score of 8.4 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-70383?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-70383, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-70383
Is Your Infrastructure Affected by CVE-2026-70383?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.