CVE-2026-72804

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
8.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 8.6Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

SiYuan versions before v3.7.4 fail to validate publish-password tier in getGraph and getLocalGraph endpoints, allowing anonymous readers to retrieve block-level content of password-protected documents. Attackers can call these endpoints without supplying a password to read protected document content and the complete reference topology.

CVSS v3
8.6
EG Score
8.6HIGHmedium confidence
EG Risk
54
EG Risk 54/100CISA 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%
Exploitation0% × 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
0.4%
EPSS %ILE
35th
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 none (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
Patch available.
generic

SiYuan before v3.7.4 Authentication Bypass via Graph Endpoints | Advisories | VulnCheck

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

Graph endpoints omit the publish-password tier: anonymous readers receive block-level content of password-protected documents (publish mode) · Advisory · siyuan-note/siyuan · GitHub

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-vpjw-wf5h-cgpq

Vendor Advisories for CVE-2026-72804(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 0.0.0-20260724091654-82e9ded423e4: fixed in 0.0.0-20260724091654-82e9ded423e4
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 45× 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 137 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-72804?
CVE-2026-72804 is a high vulnerability published on August 12, 2026. SiYuan versions before v3.7.4 fail to validate publish-password tier in getGraph and getLocalGraph endpoints, allowing anonymous readers to retrieve block-level content of password-protected documents. Attackers can call these endpoints without supplying a password to read protected document…
When was CVE-2026-72804 disclosed?
CVE-2026-72804 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-2026-72804 actively exploited?
CVE-2026-72804 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (35th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-72804?
CVE-2026-72804 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-2026-72804?
A fix for CVE-2026-72804 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-72804 are linked in the Vendor Advisories panel on this page.

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