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: 0.3%CVSS: 5.8Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

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
5.8MEDIUMmedium confidence
EG Risk
57
EG Risk 57/100CISA 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
Severity58% × 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
0.3%
EPSS %ILE
23rd
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 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 rangeFix by version rangeDependents
github.com/siyuan-note/siyuan/kernel—
  • every version up to 0.0.0-20260723163028-931ba693375e: fixed in 0.0.0-20260723163028-931ba693375e
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 41× 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 112 total refreshes for this CVE.

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

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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 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 0.3% probability of exploitation in the next 30 days (23rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-72805?
CVE-2026-72805 has a CVSS base score of 5.8 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-72805?
A fix for CVE-2026-72805 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-72805 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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