CVE-2026-73045

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-16. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: Elevated riskExposed: 0

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

SiYuan before 3.7.4 contains an improper restriction of excessive authentication attempts vulnerability in the authFilePublishAccess endpoint that allows unauthenticated attackers to brute-force per-notebook publish passwords. Attackers can submit unbounded password guesses without rate limiting or CAPTCHA to gain access to password-protected published notebooks.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
50(Track*)
EG Risk 50/100SSVC: 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
Severity75% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
23%
KEV
Not listed

Published

August 15, 2026

Last Modified

August 18, 2026

Advisory Details (2)

Auto-updated Aug 15, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

SiYuan before 3.7.4 Brute-Force via authFilePublishAccess | Advisories | VulnCheck

https://www.vulncheck.com/advisories/siyuan-before-brute-force-via-authfilepublishaccess
github Patch Available🟡 PoC Available

Unthrottled brute-force of per-notebook Publish password via /api/filetree/authFilePublishAccess · Advisory · siyuan-note/siyuan · GitHub

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-v362-968x-gp2v

Vendor Advisories for CVE-2026-73045(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 29× in last 7d / 29× 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. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 22:14 UTCGHSA enrichment
  3. 2026-08-20 11:11 UTCGHSA enrichment
  4. 2026-08-20 00:08 UTCEG score recompute
  5. 2026-08-20 00:07 UTCGHSA enrichment
  6. 2026-08-19 17:04 UTCEPSS rescore
  7. 2026-08-19 13:04 UTCGHSA enrichment
  8. 2026-08-19 02:00 UTCGHSA enrichment
  9. 2026-08-18 14:57 UTCEG score recompute
  10. 2026-08-18 14:57 UTCGHSA enrichment
  11. 2026-08-18 13:49 UTCEPSS rescore
  12. 2026-08-18 13:49 UTCEPSS rescore
  13. 2026-08-18 03:24 UTCEG score recompute
  14. 2026-08-18 03:23 UTCGHSA enrichment
  15. 2026-08-18 02:41 UTCEG score recompute
  16. 2026-08-18 02:41 UTCGHSA enrichment
  17. 2026-08-17 18:53 UTCEG score recompute
  18. 2026-08-17 18:53 UTCGHSA enrichment
  19. 2026-08-17 13:47 UTCEPSS rescore
  20. 2026-08-17 07:38 UTCGHSA enrichment
  21. 2026-08-16 20:35 UTCEG score recompute
  22. 2026-08-16 20:35 UTCGHSA enrichment
  23. 2026-08-16 14:56 UTCEPSS rescore
  24. 2026-08-16 14:56 UTCEPSS rescore
  25. 2026-08-16 09:31 UTCEG score recompute
Show 4 more
  1. 2026-08-16 09:31 UTCGHSA enrichment
  2. 2026-08-15 22:29 UTCEG score recompute
  3. 2026-08-15 21:53 UTCEG score recompute
  4. 2026-08-15 21:52 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-73045?
CVE-2026-73045 is a high vulnerability published on August 15, 2026. SiYuan before 3.7.4 contains an improper restriction of excessive authentication attempts vulnerability in the authFilePublishAccess endpoint that allows unauthenticated attackers to brute-force per-notebook publish passwords. Attackers can submit unbounded password guesses without rate limiting or…
When was CVE-2026-73045 disclosed?
CVE-2026-73045 was first published in the National Vulnerability Database on August 15, 2026, with the most recent update on August 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73045 actively exploited?
CVE-2026-73045 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 77.0% of all scored CVEs.
What is the CVSS score of CVE-2026-73045?
CVE-2026-73045 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-73045?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73045, 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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