CVE-2026-72789

HIGHPre-NVD 8.68.6—
EchelonGraph scoreMEDIUM confidence

Score 8.6 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-12. a secondary CVSS source baseline 8.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Elevated
8.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.6Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

SiYuan before v3.7.4 fails to properly validate publish access for encrypted notebooks, treating them as publicly accessible by default. Anonymous readers can enumerate and retrieve fully decrypted document content from unlocked encrypted notebooks through the publish API without authentication or key material.

CVSS v3
8.6
EG Score
8.6(medium)
EG Risk
70(Attend)
EG Risk 70/100SSVC: Attend

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
Severity86% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
22%
KEV
Not listed

Published

August 12, 2026

Last Modified

August 26, 2026

Advisory Details (2)

Auto-updated Aug 12, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

SiYuan before v3.7.4 Authentication Bypass via Encrypted Notebooks | Advisories | VulnCheck

https://www.vulncheck.com/advisories/siyuan-before-authentication-bypass-via-encrypted-notebooks
github Patch Available🟡 PoC Available

The publish-access gate treats encrypted notebooks as publicly accessible by default, allowing anonymous readers to retrieve fully decrypted document content while a notebook is unlocked · Advisory · siyuan-note/siyuan · GitHub

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-v684-q882-jgmq

Vendor Advisories for CVE-2026-72789(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/siyuan-note/siyuan/kernel—0.0.0-20260726020813-a25c2dd06aae—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 89× 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 129 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-72789?
CVE-2026-72789 is a high vulnerability published on August 12, 2026. SiYuan before v3.7.4 fails to properly validate publish access for encrypted notebooks, treating them as publicly accessible by default. Anonymous readers can enumerate and retrieve fully decrypted document content from unlocked encrypted notebooks through the publish API without authentication or…
When was CVE-2026-72789 disclosed?
CVE-2026-72789 was first published in the National Vulnerability Database on August 12, 2026, with the most recent update on August 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72789 actively exploited?
CVE-2026-72789 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 77.9% of all scored CVEs.
What is the CVSS score of CVE-2026-72789?
CVE-2026-72789 has a CVSS v3 base score of 8.6 (NVD).
How do I remediate CVE-2026-72789?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72789, 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

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