CVE-2026-70383

HIGHPre-NVD 8.48.4—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (7th percentile of EPSS-scored CVEs). 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: epss, secondary
Trending — 3 sources updated this week
8.4EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 8.4Exploit: None knownExposed services: Not assessed

An upstream fix is merged but not yet released — mitigate (WAF / firewall / segmentation) until the release ships, then apply it.

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.

CVSS v3
8.4
EG Score
8.4HIGHmedium confidence
EG Risk
38
EG Risk 38/100CISA SSVC

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 computed
Severity84% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.
EPSS PROB
0.2%
EPSS %ILE
7th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

An upstream fix is merged but not yet in a tagged release. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines until it ships, then apply the release.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 20, 2026

Last Modified

September 1, 2026

Advisory Details (3)

Auto-updated Aug 20, 2026
Upstream 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-Client
github_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/1402
github_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/736

Vendor 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 24× in last 7d / 102× 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.

Showing the most recent 100 of 160 total refreshes for this CVE.

  1. 2026-10-05 09:30 UTCEG score recompute
  2. 2026-10-05 09:30 UTCGHSA enrichment
  3. 2026-10-04 23:22 UTCEPSS rescore
  4. 2026-10-04 20:56 UTCGHSA enrichment
  5. 2026-10-04 05:17 UTCGHSA enrichment
  6. 2026-10-03 16:48 UTCEG score recompute
  7. 2026-10-03 16:48 UTCGHSA enrichment
  8. 2026-10-03 14:26 UTCEPSS rescore
  9. 2026-10-03 01:36 UTCEG score recompute
  10. 2026-10-03 01:36 UTCGHSA enrichment
  11. 2026-10-02 17:56 UTCEPSS rescore
  12. 2026-10-02 12:55 UTCGHSA enrichment
  13. 2026-10-01 22:44 UTCEG score recompute
  14. 2026-10-01 22:44 UTCGHSA enrichment
  15. 2026-10-01 19:50 UTCEPSS rescore
  16. 2026-10-01 09:18 UTCGHSA enrichment
  17. 2026-09-30 20:49 UTCEG score recompute
  18. 2026-09-30 20:49 UTCGHSA enrichment
  19. 2026-09-30 15:03 UTCEPSS rescore
  20. 2026-09-30 08:21 UTCEG score recompute
  21. 2026-09-30 08:21 UTCGHSA enrichment
  22. 2026-09-28 21:39 UTCEG score recompute
  23. 2026-09-28 21:39 UTCGHSA enrichment
  24. 2026-09-28 13:52 UTCEPSS rescore
  25. 2026-09-28 04:30 UTCGHSA enrichment
Show 75 more
  1. 2026-09-27 16:01 UTCEG score recompute
  2. 2026-09-27 16:01 UTCGHSA enrichment
  3. 2026-09-27 13:48 UTCEPSS rescore
  4. 2026-09-27 03:20 UTCEG score recompute
  5. 2026-09-27 03:20 UTCGHSA enrichment
  6. 2026-09-26 15:59 UTCEPSS rescore
  7. 2026-09-25 13:11 UTCGHSA enrichment
  8. 2026-09-25 00:43 UTCEG score recompute
  9. 2026-09-25 00:43 UTCGHSA enrichment
  10. 2026-09-24 09:13 UTCGHSA enrichment
  11. 2026-09-23 20:44 UTCEG score recompute
  12. 2026-09-23 20:44 UTCGHSA enrichment
  13. 2026-09-23 17:54 UTCEPSS rescore
  14. 2026-09-23 08:15 UTCGHSA enrichment
  15. 2026-09-22 19:46 UTCEG score recompute
  16. 2026-09-22 19:46 UTCGHSA enrichment
  17. 2026-09-22 04:10 UTCEG score recompute
  18. 2026-09-22 04:10 UTCGHSA enrichment
  19. 2026-09-21 21:09 UTCEPSS rescore
  20. 2026-09-21 15:40 UTCGHSA enrichment
  21. 2026-09-21 03:11 UTCEG score recompute
  22. 2026-09-21 03:11 UTCGHSA enrichment
  23. 2026-09-20 20:16 UTCEPSS rescore
  24. 2026-09-20 14:36 UTCGHSA enrichment
  25. 2026-09-20 02:05 UTCEG score recompute
  26. 2026-09-20 02:05 UTCGHSA enrichment
  27. 2026-09-19 13:36 UTCGHSA enrichment
  28. 2026-09-19 01:07 UTCEG score recompute
  29. 2026-09-19 01:07 UTCGHSA enrichment
  30. 2026-09-18 19:28 UTCEPSS rescore
  31. 2026-09-18 12:37 UTCGHSA enrichment
  32. 2026-09-18 00:08 UTCEG score recompute
  33. 2026-09-18 00:08 UTCGHSA enrichment
  34. 2026-09-17 11:12 UTCGHSA enrichment
  35. 2026-09-16 22:43 UTCEG score recompute
  36. 2026-09-16 22:43 UTCGHSA enrichment
  37. 2026-09-16 14:08 UTCEPSS rescore
  38. 2026-09-16 09:44 UTCEG score recompute
  39. 2026-09-16 09:44 UTCGHSA enrichment
  40. 2026-09-16 05:15 UTCEPSS rescore
  41. 2026-09-15 21:08 UTCGHSA enrichment
  42. 2026-09-15 08:01 UTCEG score recompute
  43. 2026-09-15 08:01 UTCGHSA enrichment
  44. 2026-09-15 03:12 UTCEPSS rescore
  45. 2026-09-14 19:32 UTCGHSA enrichment
  46. 2026-09-14 07:03 UTCGHSA enrichment
  47. 2026-09-13 18:34 UTCEG score recompute
  48. 2026-09-13 18:34 UTCGHSA enrichment
  49. 2026-09-13 06:05 UTCGHSA enrichment
  50. 2026-09-12 17:36 UTCEG score recompute
  51. 2026-09-12 17:36 UTCGHSA enrichment
  52. 2026-09-12 15:02 UTCEPSS rescore
  53. 2026-09-12 05:07 UTCGHSA enrichment
  54. 2026-09-11 16:38 UTCEG score recompute
  55. 2026-09-11 16:38 UTCGHSA enrichment
  56. 2026-09-11 14:53 UTCEPSS rescore
  57. 2026-09-11 04:09 UTCGHSA enrichment
  58. 2026-09-10 15:39 UTCEG score recompute
  59. 2026-09-10 15:39 UTCGHSA enrichment
  60. 2026-09-10 09:35 UTCEPSS rescore
  61. 2026-09-10 03:03 UTCGHSA enrichment
  62. 2026-09-09 14:33 UTCGHSA enrichment
  63. 2026-09-09 02:00 UTCEG score recompute
  64. 2026-09-09 02:00 UTCGHSA enrichment
  65. 2026-09-08 22:01 UTCEPSS rescore
  66. 2026-09-08 04:24 UTCEG score recompute
  67. 2026-09-08 04:24 UTCGHSA enrichment
  68. 2026-09-07 16:01 UTCEPSS rescore
  69. 2026-09-07 15:55 UTCGHSA enrichment
  70. 2026-09-07 03:25 UTCGHSA enrichment
  71. 2026-09-06 14:41 UTCEG score recompute
  72. 2026-09-06 14:41 UTCGHSA enrichment
  73. 2026-09-06 13:47 UTCEPSS rescore
  74. 2026-09-06 02:12 UTCEG score recompute
  75. 2026-09-06 02:12 UTCGHSA enrichment

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Frequently asked(5)

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 on August 20, 2026, with the most recent update on September 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-70383 actively exploited?
CVE-2026-70383 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (7th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-70383?
CVE-2026-70383 has a CVSS base score of 8.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-70383?
An upstream fix for CVE-2026-70383 has been merged but is not yet in a tagged release. Until it ships, restrict network exposure of the affected system or apply the vendor's mitigation, then update to the release that contains the fix. The vendor advisories EchelonGraph has for CVE-2026-70383 are linked in the Vendor Advisories panel on this page.

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