CVE-2026-73608

HIGHPre-NVD 8.68.6—
EchelonGraph scoreMEDIUM confidence

Score 8.6 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-13. A secondary CVSS source baseline 8.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
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: Elevated riskExposed services: Not assessed

A fix is available — apply it.

SiYuan's development branch (endpoint introduced by commit 9b8e8956f, not present in v3.7.3 or master, patched in v3.7.4) contains a missing-authorization vulnerability in the /api/av/getAttributeViewSearchTarget endpoint. The route is registered with CheckAuth only and performs no authorization checks (no CheckReadonly, no publish-access or encrypted-notebook gating). Given a database identifier taken from a published page and a keyword, an anonymous reader can query the endpoint to retrieve matching database row content, including rows that publish filters (FilterAttributeViewByPublishAccess) would otherwise withhold. No released stable version is affected.

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
0.4%
EPSS %ILE
32nd
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 13, 2026

Last Modified

August 26, 2026

Advisory Details (2)

Auto-updated Aug 13, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

SiYuan before v3.7.4 Authorization Bypass via getAttributeViewSearchTarget | Advisories | VulnCheck

https://www.vulncheck.com/advisories/siyuan-before-authorization-bypass-via-getattributeviewsearchtarget
github Patch Available🟡 PoC Available

getAttributeViewSearchTarget returns database row content to anonymous readers with no publish-access check, reopening the class closed one day earlier at the adjacent route · Advisory · siyuan-note/siyuan · GitHub

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-9cqf-hhrq-7v45

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 88× 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 187 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-73608?
CVE-2026-73608 is a high vulnerability published on August 13, 2026. SiYuan's development branch (endpoint introduced by commit 9b8e8956f, not present in v3.7.3 or master, patched in v3.7.4) contains a missing-authorization vulnerability in the /api/av/getAttributeViewSearchTarget endpoint. The route is registered with CheckAuth only and performs no authorization…
When was CVE-2026-73608 disclosed?
CVE-2026-73608 was first published on August 13, 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-2026-73608 actively exploited?
CVE-2026-73608 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (32nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73608?
CVE-2026-73608 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-2026-73608?
A fix for CVE-2026-73608 is available: update to the fixed version the vendor names in its advisory.

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