CVE-2026-72805

MEDIUMPre-NVD 5.85.8—
EchelonGraph scoreMEDIUM confidence

Score 5.8 from GitHub Security Advisory published 2026-08-12. a secondary CVSS source baseline 5.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Elevated
5.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.8Exploit: Elevated riskExposed: 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 enforce publish-access checks on getBlockBreadcrumb, getRefText, and getBlockTreeInfos endpoints, allowing disclosure of protected document content and metadata. Anonymous readers or publish RoleReader accounts can retrieve document titles, ancestor block content snippets, reference text, and path metadata for publish-forbidden or password-protected documents by supplying block IDs.

CVSS v3
5.8
EG Score
5.8(medium)
EG Risk
57(Attend)
EG Risk 57/100SSVC: 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
Severity58% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
15%
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 Information Disclosure via Block Endpoints | Advisories | VulnCheck

https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-block-endpoints
github Patch Available🟡 PoC Available

Missing publish-access check on getBlockBreadcrumb, getRefText, and getBlockTreeInfos discloses content and metadata of protected/forbidden documents (publish mode) · Advisory · siyuan-note/siyuan · GitHub

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-67x2-mq63-v9vm

Vendor Advisories for CVE-2026-72805(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—0.0.0-20260723163028-931ba693375e—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 63× 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.

  1. 2026-09-19 07:02 UTCEG score recompute
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-18 06:57 UTCEG score recompute
  4. 2026-09-17 06:57 UTCEG score recompute
  5. 2026-09-16 14:08 UTCEPSS rescore
  6. 2026-09-16 06:23 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 05:11 UTCEG score recompute
  11. 2026-09-13 05:11 UTCEG score recompute
  12. 2026-09-12 15:02 UTCEPSS rescore
  13. 2026-09-12 05:12 UTCEG score recompute
  14. 2026-09-11 14:53 UTCEPSS rescore
  15. 2026-09-11 05:12 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. 2026-09-08 01:25 UTCEG score recompute
  20. 2026-09-07 01:25 UTCEG score recompute
  21. 2026-09-06 13:48 UTCEPSS rescore
  22. 2026-09-06 01:25 UTCEG score recompute
  23. 2026-09-05 01:25 UTCEG score recompute
  24. 2026-09-04 05:07 UTCEPSS rescore
  25. 2026-09-02 23:28 UTCEG score recompute
Show 68 more
  1. 2026-09-02 23:28 UTCGHSA enrichment
  2. 2026-09-02 14:12 UTCEPSS rescore
  3. 2026-09-01 13:54 UTCEPSS rescore
  4. 2026-09-01 11:40 UTCEG score recompute
  5. 2026-09-01 11:40 UTCGHSA enrichment
  6. 2026-09-01 04:40 UTCEPSS rescore
  7. 2026-09-01 04:40 UTCEPSS rescore
  8. 2026-08-31 09:51 UTCEG score recompute
  9. 2026-08-31 09:51 UTCGHSA enrichment
  10. 2026-08-30 19:18 UTCEPSS rescore
  11. 2026-08-30 19:17 UTCEPSS rescore
  12. 2026-08-30 08:33 UTCEG score recompute
  13. 2026-08-30 08:33 UTCGHSA enrichment
  14. 2026-08-30 01:22 UTCEPSS rescore
  15. 2026-08-29 08:32 UTCEG score recompute
  16. 2026-08-29 08:32 UTCGHSA enrichment
  17. 2026-08-28 21:42 UTCEPSS rescore
  18. 2026-08-27 19:36 UTCEG score recompute
  19. 2026-08-27 19:36 UTCGHSA enrichment
  20. 2026-08-27 14:25 UTCEPSS rescore
  21. 2026-08-26 17:16 UTCEG score recompute
  22. 2026-08-26 17:16 UTCGHSA enrichment
  23. 2026-08-26 14:47 UTCEPSS rescore
  24. 2026-08-25 22:15 UTCEG score recompute
  25. 2026-08-25 22:15 UTCGHSA enrichment
  26. 2026-08-25 13:49 UTCEPSS rescore
  27. 2026-08-24 22:15 UTCEG score recompute
  28. 2026-08-24 22:15 UTCGHSA enrichment
  29. 2026-08-23 22:16 UTCEG score recompute
  30. 2026-08-23 22:16 UTCGHSA enrichment
  31. 2026-08-23 00:19 UTCEPSS rescore
  32. 2026-08-22 22:16 UTCEG score recompute
  33. 2026-08-22 22:16 UTCGHSA enrichment
  34. 2026-08-21 23:49 UTCEPSS rescore
  35. 2026-08-21 22:16 UTCEG score recompute
  36. 2026-08-21 22:16 UTCGHSA enrichment
  37. 2026-08-20 22:56 UTCEPSS rescore
  38. 2026-08-20 22:16 UTCGHSA enrichment
  39. 2026-08-19 22:17 UTCEG score recompute
  40. 2026-08-19 22:17 UTCGHSA enrichment
  41. 2026-08-19 17:04 UTCEPSS rescore
  42. 2026-08-18 22:17 UTCEG score recompute
  43. 2026-08-18 22:17 UTCGHSA enrichment
  44. 2026-08-18 13:49 UTCEPSS rescore
  45. 2026-08-18 13:49 UTCEPSS rescore
  46. 2026-08-17 22:18 UTCEG score recompute
  47. 2026-08-17 22:18 UTCGHSA enrichment
  48. 2026-08-17 13:47 UTCEPSS rescore
  49. 2026-08-16 22:18 UTCEG score recompute
  50. 2026-08-16 22:18 UTCGHSA enrichment
  51. 2026-08-16 14:56 UTCEPSS rescore
  52. 2026-08-16 14:56 UTCEPSS rescore
  53. 2026-08-16 02:15 UTCEPSS rescore
  54. 2026-08-15 22:18 UTCEG score recompute
  55. 2026-08-15 22:18 UTCGHSA enrichment
  56. 2026-08-15 01:31 UTCEPSS rescore
  57. 2026-08-14 22:18 UTCEG score recompute
  58. 2026-08-14 22:18 UTCGHSA enrichment
  59. 2026-08-14 22:14 UTCEG score recompute
  60. 2026-08-14 22:14 UTCGHSA enrichment
  61. 2026-08-14 17:08 UTCEG score recompute
  62. 2026-08-14 17:08 UTCGHSA enrichment
  63. 2026-08-13 22:00 UTCEPSS rescore
  64. 2026-08-13 20:19 UTCEG score recompute
  65. 2026-08-13 20:19 UTCGHSA enrichment
  66. 2026-08-12 20:20 UTCEG score recompute
  67. 2026-08-12 19:21 UTCEG score recompute
  68. 2026-08-12 19:20 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-72805?
CVE-2026-72805 is a medium vulnerability published on August 12, 2026. SiYuan versions before v3.7.4 fail to enforce publish-access checks on getBlockBreadcrumb, getRefText, and getBlockTreeInfos endpoints, allowing disclosure of protected document content and metadata. Anonymous readers or publish RoleReader accounts can retrieve document titles, ancestor block…
When was CVE-2026-72805 disclosed?
CVE-2026-72805 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-2026-72805 actively exploited?
CVE-2026-72805 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 85.0% of all scored CVEs.
What is the CVSS score of CVE-2026-72805?
CVE-2026-72805 has a CVSS v3 base score of 5.8 (NVD).
How do I remediate CVE-2026-72805?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72805, 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-2026-72805

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