CVE-2026-73608

HIGHPre-NVD 8.68.6—
EchelonGraph scoreHIGH confidence

Score 8.6 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-13. the CNA's CVSS baseline 8.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
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%CVSS: 8.6Exploit: Elevated riskExposed: 0

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

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
8.6(high)
EG Risk
70(Attend)
EG Risk 70/100SSVC: 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
Severity86% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
16%
KEV
Not listed

Published

August 13, 2026

Last Modified

August 14, 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

Vendor Advisories for CVE-2026-73608(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 32× in last 7d / 42× 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. 2026-08-21 02:56 UTCEG score recompute
  2. 2026-08-21 02:56 UTCGHSA enrichment
  3. 2026-08-20 22:56 UTCEPSS rescore
  4. 2026-08-20 15:08 UTCGHSA enrichment
  5. 2026-08-20 03:10 UTCEG score recompute
  6. 2026-08-20 03:10 UTCGHSA enrichment
  7. 2026-08-19 17:04 UTCEPSS rescore
  8. 2026-08-19 15:20 UTCGHSA enrichment
  9. 2026-08-19 03:25 UTCGHSA enrichment
  10. 2026-08-18 15:36 UTCEG score recompute
  11. 2026-08-18 15:36 UTCGHSA enrichment
  12. 2026-08-18 13:49 UTCEPSS rescore
  13. 2026-08-18 13:49 UTCEPSS rescore
  14. 2026-08-18 03:46 UTCGHSA enrichment
  15. 2026-08-17 15:58 UTCEG score recompute
  16. 2026-08-17 15:58 UTCGHSA enrichment
  17. 2026-08-17 13:47 UTCEPSS rescore
  18. 2026-08-17 04:10 UTCGHSA enrichment
  19. 2026-08-16 16:21 UTCEG score recompute
  20. 2026-08-16 16:21 UTCGHSA enrichment
  21. 2026-08-16 14:56 UTCEPSS rescore
  22. 2026-08-16 14:56 UTCEPSS rescore
  23. 2026-08-16 04:33 UTCEG score recompute
  24. 2026-08-16 04:33 UTCGHSA enrichment
  25. 2026-08-16 02:15 UTCEPSS rescore
Show 17 more
  1. 2026-08-15 16:45 UTCGHSA enrichment
  2. 2026-08-15 04:57 UTCEG score recompute
  3. 2026-08-15 04:57 UTCGHSA enrichment
  4. 2026-08-15 01:31 UTCEPSS rescore
  5. 2026-08-14 17:08 UTCEG score recompute
  6. 2026-08-14 17:08 UTCGHSA enrichment
  7. 2026-08-14 15:02 UTCGHSA enrichment
  8. 2026-08-14 03:13 UTCEG score recompute
  9. 2026-08-14 03:13 UTCGHSA enrichment
  10. 2026-08-13 15:25 UTCEG score recompute
  11. 2026-08-13 15:25 UTCGHSA enrichment
  12. 2026-08-13 15:14 UTCEG score recompute
  13. 2026-08-13 15:14 UTCGHSA enrichment
  14. 2026-08-13 12:33 UTCEG score recompute
  15. 2026-08-13 12:33 UTCGHSA enrichment
  16. 2026-08-13 11:42 UTCEG score recompute
  17. 2026-08-13 11:41 UTCMITRE cvelistV5first tracked

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 in the National Vulnerability Database on August 13, 2026, with the most recent update on August 14, 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% probability of exploitation in the next 30 days, which ranks it in the top 84.4% of all scored CVEs.
What is the CVSS score of CVE-2026-73608?
CVE-2026-73608 has a CVSS v4.0 base score of 8.6 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-73608?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73608, 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

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