CVE-2026-73607

MEDIUMPre-NVD 5.85.8—
EchelonGraph scoreMEDIUM confidence

Score 5.8 from GitHub Security Advisory published 2026-08-13. 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 weekElevated
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 contain an information disclosure vulnerability in the /api/storage/getOutlineStorage endpoint that performs no authorization checks. Attackers can retrieve outline state including heading identifiers for any document by supplying its identifier, even for documents forbidden to the requester.

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 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 Information Disclosure via getOutlineStorage | Advisories | VulnCheck

https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-getoutlinestorage
github Patch Available🟡 PoC Available

Outline state for any document, including documents forbidden to readers, is returned by /api/storage/getOutlineStorage with no access check · Advisory · siyuan-note/siyuan · GitHub

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-53fp-9jmv-227g

Vendor Advisories for CVE-2026-73607(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 0.0.0-20260812083335-251596fc0de2: fixed in 0.0.0-20260812083335-251596fc0de2
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× 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 140 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 08:05 UTCEG score recompute
  5. 2026-10-01 19:50 UTCEPSS rescore
  6. 2026-09-30 21:50 UTCEG score recompute
  7. 2026-09-30 21:50 UTCGHSA enrichment
  8. 2026-09-29 15:24 UTCEPSS rescore
  9. 2026-09-29 07:19 UTCEG score recompute
  10. 2026-09-29 07:19 UTCGHSA enrichment
  11. 2026-09-28 13:52 UTCEPSS rescore
  12. 2026-09-28 08:32 UTCEG score recompute
  13. 2026-09-28 08:32 UTCGHSA enrichment
  14. 2026-09-27 13:48 UTCEPSS rescore
  15. 2026-09-27 09:48 UTCEG score recompute
  16. 2026-09-27 09:48 UTCGHSA enrichment
  17. 2026-09-26 15:59 UTCEPSS rescore
  18. 2026-09-25 03:37 UTCEG score recompute
  19. 2026-09-25 03:37 UTCGHSA enrichment
  20. 2026-09-23 20:52 UTCEG score recompute
  21. 2026-09-23 20:52 UTCGHSA enrichment
  22. 2026-09-23 17:54 UTCEPSS rescore
  23. 2026-09-22 21:03 UTCEG score recompute
  24. 2026-09-22 21:03 UTCGHSA enrichment
  25. 2026-09-21 21:09 UTCEPSS rescore
Show 75 more
  1. 2026-09-21 19:59 UTCEG score recompute
  2. 2026-09-21 19:59 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 20:15 UTCGHSA enrichment
  5. 2026-09-19 21:40 UTCEG score recompute
  6. 2026-09-19 21:40 UTCGHSA enrichment
  7. 2026-09-18 23:05 UTCEG score recompute
  8. 2026-09-18 23:05 UTCGHSA enrichment
  9. 2026-09-18 19:28 UTCEPSS rescore
  10. 2026-09-18 00:30 UTCEG score recompute
  11. 2026-09-18 00:30 UTCGHSA enrichment
  12. 2026-09-17 00:13 UTCEG score recompute
  13. 2026-09-17 00:13 UTCGHSA enrichment
  14. 2026-09-16 14:08 UTCEPSS rescore
  15. 2026-09-16 05:15 UTCEPSS rescore
  16. 2026-09-15 20:12 UTCEG score recompute
  17. 2026-09-15 20:12 UTCGHSA enrichment
  18. 2026-09-15 03:12 UTCEPSS rescore
  19. 2026-09-14 20:54 UTCGHSA enrichment
  20. 2026-09-13 22:04 UTCEG score recompute
  21. 2026-09-13 22:04 UTCGHSA enrichment
  22. 2026-09-12 23:29 UTCEG score recompute
  23. 2026-09-12 23:29 UTCGHSA enrichment
  24. 2026-09-12 15:02 UTCEPSS rescore
  25. 2026-09-12 00:54 UTCEG score recompute
  26. 2026-09-12 00:54 UTCGHSA enrichment
  27. 2026-09-11 14:53 UTCEPSS rescore
  28. 2026-09-11 02:19 UTCEG score recompute
  29. 2026-09-11 02:19 UTCGHSA enrichment
  30. 2026-09-10 09:35 UTCEPSS rescore
  31. 2026-09-10 03:44 UTCGHSA enrichment
  32. 2026-09-09 05:07 UTCEG score recompute
  33. 2026-09-09 05:07 UTCGHSA enrichment
  34. 2026-09-08 22:01 UTCEPSS rescore
  35. 2026-09-07 21:46 UTCEG score recompute
  36. 2026-09-07 21:46 UTCGHSA enrichment
  37. 2026-09-06 23:11 UTCEG score recompute
  38. 2026-09-06 23:11 UTCGHSA enrichment
  39. 2026-09-06 13:48 UTCEPSS rescore
  40. 2026-09-06 00:25 UTCEG score recompute
  41. 2026-09-06 00:25 UTCGHSA enrichment
  42. 2026-09-05 01:50 UTCEG score recompute
  43. 2026-09-05 01:50 UTCGHSA enrichment
  44. 2026-09-04 05:07 UTCEPSS rescore
  45. 2026-09-04 03:15 UTCGHSA enrichment
  46. 2026-09-03 03:49 UTCEG score recompute
  47. 2026-09-03 03:48 UTCGHSA enrichment
  48. 2026-09-02 14:12 UTCEPSS rescore
  49. 2026-09-02 05:14 UTCEG score recompute
  50. 2026-09-02 05:14 UTCGHSA enrichment
  51. 2026-09-01 13:54 UTCEPSS rescore
  52. 2026-09-01 06:18 UTCEG score recompute
  53. 2026-09-01 06:18 UTCGHSA enrichment
  54. 2026-09-01 04:40 UTCEPSS rescore
  55. 2026-09-01 04:40 UTCEPSS rescore
  56. 2026-08-31 05:33 UTCEG score recompute
  57. 2026-08-31 05:33 UTCGHSA enrichment
  58. 2026-08-30 19:18 UTCEPSS rescore
  59. 2026-08-30 19:17 UTCEPSS rescore
  60. 2026-08-30 06:58 UTCEG score recompute
  61. 2026-08-30 06:58 UTCGHSA enrichment
  62. 2026-08-30 01:22 UTCEPSS rescore
  63. 2026-08-29 08:23 UTCEG score recompute
  64. 2026-08-29 08:23 UTCGHSA enrichment
  65. 2026-08-28 21:42 UTCEPSS rescore
  66. 2026-08-27 16:16 UTCEG score recompute
  67. 2026-08-27 16:16 UTCGHSA enrichment
  68. 2026-08-27 14:25 UTCEPSS rescore
  69. 2026-08-26 17:16 UTCEG score recompute
  70. 2026-08-26 17:15 UTCGHSA enrichment
  71. 2026-08-26 14:47 UTCEPSS rescore
  72. 2026-08-26 07:02 UTCEG score recompute
  73. 2026-08-26 07:02 UTCGHSA enrichment
  74. 2026-08-25 13:49 UTCEPSS rescore
  75. 2026-08-25 08:26 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-73607?
CVE-2026-73607 is a medium vulnerability published on August 13, 2026. SiYuan versions before v3.7.4 contain an information disclosure vulnerability in the /api/storage/getOutlineStorage endpoint that performs no authorization checks. Attackers can retrieve outline state including heading identifiers for any document by supplying its identifier, even for documents…
When was CVE-2026-73607 disclosed?
CVE-2026-73607 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-2026-73607 actively exploited?
CVE-2026-73607 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-2026-73607?
CVE-2026-73607 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-2026-73607?
A fix for CVE-2026-73607 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-73607 are linked in the Vendor Advisories panel on this page.

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