CVE-2026-73630

MEDIUMPre-NVD 5.85.8—
EchelonGraph scoreMEDIUM confidence

Score 5.8 from GitHub Security Advisory published 2026-08-14. A secondary CVSS source baseline 5.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
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: None knownExposed services: Not assessed

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

SiYuan before v3.7.4 contains an information disclosure vulnerability in the /api/filetree/authFilePublishAccess endpoint, which is registered with CheckAuth only and is reachable anonymously. The endpoint never sets a failure code, so its outcome is signalled entirely by the response message and by the presence of a Set-Cookie header, and these signals differ across access tiers. By submitting requests with an empty password for a candidate document identifier, an anonymous attacker can distinguish whether a document is public/nonexistent, password-protected, or exists at the hidden or forbidden tier, thereby confirming the existence of documents they are not permitted to access. Because hidden and forbidden entries store an empty password, such requests also cause the server to issue a publish-auth cookie for forbidden documents.

CVSS v3
5.8
EG Score
5.8MEDIUMmedium confidence
EG Risk
31
EG Risk 31/100CISA 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%
Exploitation0% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track or Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.3%
EPSS %ILE
25th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track or Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact partial (CVSS below 9.0). 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 14, 2026

Last Modified

August 26, 2026

Advisory Details (2)

Auto-updated Aug 14, 2026
🔬 Proof of concept available. No fix on record yet. Sources: github.
generic

SiYuan before v3.7.4 Information Disclosure via authFilePublishAccess | Advisories | VulnCheck

https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-authfilepublishaccess
githubMentions a patch (unverified)🟡 PoC Available

authFilePublishAccess distinguishes hidden and forbidden documents from public and nonexistent ones, and issues a publish-auth cookie for documents it reports as forbidden · Advisory · siyuan-note/siyuan · GitHub

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-4pjg-x8qj-33j5

Vendor Advisories for CVE-2026-73630(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 13× in last 7d / 66× 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 144 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-73630?
CVE-2026-73630 is a medium vulnerability published on August 14, 2026. SiYuan before v3.7.4 contains an information disclosure vulnerability in the /api/filetree/authFilePublishAccess endpoint, which is registered with CheckAuth only and is reachable anonymously. The endpoint never sets a failure code, so its outcome is signalled entirely by the response message and…
When was CVE-2026-73630 disclosed?
CVE-2026-73630 was first published on August 14, 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-2026-73630 actively exploited?
CVE-2026-73630 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (25th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73630?
CVE-2026-73630 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-2026-73630?
No fix for CVE-2026-73630 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-73630 are linked in the Vendor Advisories panel on this page.

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