CVE-2026-72794

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%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 versions before v3.7.4 expose the session cookie signing key through the /api/system/getConf endpoint to unauthenticated users in publish mode. Attackers can retrieve the CookieKey value and forge valid session cookies to impersonate users or gain administrative access.

CVSS v3
8.6
EG Score
8.6(medium)
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
17%
KEV
Not listed

Published

August 12, 2026

Last Modified

August 26, 2026

Advisory Details (2)

Auto-updated Aug 12, 2026
No patch confirmed yet.
generic

siyuan before v3.7.4 Session Cookie Key Disclosure via getConf | Advisories | VulnCheck

https://www.vulncheck.com/advisories/siyuan-before-session-cookie-key-disclosure-via-getconf
github Patch Available🟡 PoC Available

The session-cookie signing key (Conf.CookieKey) is returned to anonymous readers by /api/system/getConf · Advisory · siyuan-note/siyuan · GitHub

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-34fj-mwm6-fjfg

Vendor Advisories for CVE-2026-72794(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 rangeFixed inDependents
github.com/siyuan-note/siyuan/kernel—0.0.0-20260725123945-77421530be4a—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 79× 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 115 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-72794?
CVE-2026-72794 is a high vulnerability published on August 12, 2026. siyuan versions before v3.7.4 expose the session cookie signing key through the /api/system/getConf endpoint to unauthenticated users in publish mode. Attackers can retrieve the CookieKey value and forge valid session cookies to impersonate users or gain administrative access.
When was CVE-2026-72794 disclosed?
CVE-2026-72794 was first published in the National Vulnerability Database 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-2026-72794 actively exploited?
CVE-2026-72794 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 83.4% of all scored CVEs.
What is the CVSS score of CVE-2026-72794?
CVE-2026-72794 has a CVSS v3 base score of 8.6 (NVD).
How do I remediate CVE-2026-72794?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72794, 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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