CVE-2026-72793

HIGHPre-NVD 8.68.6—
EchelonGraph scoreHIGH 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
Trending — 3 sources updated this weekElevated
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 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
8.6(high)
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
16%
KEV
Not listed

Published

August 12, 2026

Last Modified

August 14, 2026

Advisory Details (2)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 34× in last 7d / 39× 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 08:13 UTCGHSA enrichment
  2. 2026-08-19 19:18 UTCEG score recompute
  3. 2026-08-19 19:18 UTCGHSA enrichment
  4. 2026-08-19 17:04 UTCEPSS rescore
  5. 2026-08-19 06:21 UTCGHSA enrichment
  6. 2026-08-18 17:19 UTCEG score recompute
  7. 2026-08-18 17:18 UTCGHSA enrichment
  8. 2026-08-18 13:49 UTCEPSS rescore
  9. 2026-08-18 13:49 UTCEPSS rescore
  10. 2026-08-18 03:49 UTCGHSA enrichment
  11. 2026-08-17 14:54 UTCEG score recompute
  12. 2026-08-17 14:54 UTCGHSA enrichment
  13. 2026-08-17 13:47 UTCEPSS rescore
  14. 2026-08-17 01:59 UTCEG score recompute
  15. 2026-08-17 01:59 UTCGHSA enrichment
  16. 2026-08-16 14:56 UTCEPSS rescore
  17. 2026-08-16 14:56 UTCEPSS rescore
  18. 2026-08-16 13:04 UTCEG score recompute
  19. 2026-08-16 13:04 UTCGHSA enrichment
  20. 2026-08-16 02:15 UTCEPSS rescore
  21. 2026-08-16 00:09 UTCGHSA enrichment
  22. 2026-08-15 11:14 UTCEG score recompute
  23. 2026-08-15 11:14 UTCGHSA enrichment
  24. 2026-08-15 01:31 UTCEPSS rescore
  25. 2026-08-14 22:18 UTCEG score recompute
Show 14 more
  1. 2026-08-14 22:18 UTCGHSA enrichment
  2. 2026-08-14 22:04 UTCEG score recompute
  3. 2026-08-14 22:04 UTCGHSA enrichment
  4. 2026-08-14 17:09 UTCEG score recompute
  5. 2026-08-14 17:09 UTCGHSA enrichment
  6. 2026-08-14 11:05 UTCGHSA enrichment
  7. 2026-08-13 22:10 UTCEG score recompute
  8. 2026-08-13 22:10 UTCGHSA enrichment
  9. 2026-08-13 22:00 UTCEPSS rescore
  10. 2026-08-13 09:15 UTCEG score recompute
  11. 2026-08-13 09:15 UTCGHSA enrichment
  12. 2026-08-12 20:20 UTCEG score recompute
  13. 2026-08-12 19:21 UTCEG score recompute
  14. 2026-08-12 19:20 UTCMITRE cvelistV5first tracked

Related CVEs(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 in the National Vulnerability Database on August 12, 2026, with the most recent update on August 14, 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% probability of exploitation in the next 30 days, which ranks it in the top 84.4% of all scored CVEs.
What is the CVSS score of CVE-2026-72793?
CVE-2026-72793 has a CVSS v3 base score of 8.6 (NVD).
How do I remediate CVE-2026-72793?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72793, 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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