CVE-2026-72793

HIGHPre-NVD 8.68.6—
EchelonGraph scoreMEDIUM confidence

Score 8.6 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-12. A secondary CVSS source baseline 8.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Elevated
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 versions before v3.7.4 fail to mask sensitive configuration fields in the /api/system/getConf endpoint, allowing anonymous or publish-reader users to obtain the session-cookie signing key, OS username via pandoc path, and encrypted-notebook key material. Attackers can forge and tamper with session cookies to impersonate users, and on instances without access-auth codes configured, escalate to administrator privileges.

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 12, 2026

Last Modified

August 26, 2026

Advisory Details (2)

Auto-updated Aug 12, 2026
Patch available.
generic

SiYuan before v3.7.4 Information Disclosure via /api/system/getConf | Advisories | VulnCheck

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

Non-administrator responses from /api/system/getConf omit three secrets that the configuration-export path explicitly strips, disclosing the session-cookie signing key and the OS username to anonymous readers · Advisory · siyuan-note/siyuan · GitHub

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-h4v5-crx2-3cv4

Vendor Advisories for CVE-2026-72793(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 0.0.0-20260725132049-2d8b98395a91: fixed in 0.0.0-20260725132049-2d8b98395a91
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 45× 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 135 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-72793?
CVE-2026-72793 is a high vulnerability published on August 12, 2026. SiYuan versions before v3.7.4 fail to mask sensitive configuration fields in the /api/system/getConf endpoint, allowing anonymous or publish-reader users to obtain the session-cookie signing key, OS username via pandoc path, and encrypted-notebook key material. Attackers can forge and tamper with…
When was CVE-2026-72793 disclosed?
CVE-2026-72793 was first published on August 12, 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-2026-72793 actively exploited?
CVE-2026-72793 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-2026-72793?
CVE-2026-72793 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-2026-72793?
A fix for CVE-2026-72793 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-72793 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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