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: 0.5%CVSS: 8.6Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

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
8.6HIGHmedium confidence
EG Risk
70
EG Risk 70/100CISA 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
Severity86% × 45%
Exploitation40% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.5%
EPSS %ILE
40th
KEV
Not listed

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

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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 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 rangeFix by version rangeDependents
github.com/siyuan-note/siyuan/kernel—
  • every version up to 0.0.0-20260726020813-a25c2dd06aae: fixed in 0.0.0-20260726020813-a25c2dd06aae
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 51× 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 152 total refreshes for this CVE.

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

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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 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 0.5% probability of exploitation in the next 30 days (40th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-72789?
CVE-2026-72789 has a CVSS base score of 8.6 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-72789?
A fix for CVE-2026-72789 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-72789 are linked in the Vendor Advisories panel on this page.

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