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%CVSS: 8.6Exploit: None knownExposed: 0

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

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
8.6(medium)
EG Risk
54(Track)
EG Risk 54/100SSVC: 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 computed
Severity86% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
17%
KEV
Not listed

Published

August 12, 2026

Last Modified

August 26, 2026

Advisory Details (2)

Auto-updated Aug 12, 2026
No patch confirmed yet.
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 rangeFixed inDependents
github.com/siyuan-note/siyuan/kernel—0.0.0-20260724091654-82e9ded423e4—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 78× 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 114 total refreshes for this CVE.

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

Related CVEs(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 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-2026-72804 actively exploited?
CVE-2026-72804 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 82.6% of all scored CVEs.
What is the CVSS score of CVE-2026-72804?
CVE-2026-72804 has a CVSS v3 base score of 8.6 (NVD).
How do I remediate CVE-2026-72804?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72804, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-72804

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