CVE-2026-72794

HIGHPre-NVD 8.68.6—
EchelonGraph scoreHIGH confidence

Score 8.6 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-12. the CNA's CVSS baseline 8.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
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 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(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
17%
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 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.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 32× in last 7d / 40× 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. 2026-08-21 00:56 UTCEG score recompute
  2. 2026-08-21 00:56 UTCGHSA enrichment
  3. 2026-08-20 22:56 UTCEPSS rescore
  4. 2026-08-20 12:18 UTCGHSA enrichment
  5. 2026-08-19 23:39 UTCEG score recompute
  6. 2026-08-19 23:39 UTCGHSA enrichment
  7. 2026-08-19 17:04 UTCEPSS rescore
  8. 2026-08-19 10:59 UTCGHSA enrichment
  9. 2026-08-18 22:20 UTCEG score recompute
  10. 2026-08-18 22:20 UTCGHSA enrichment
  11. 2026-08-18 13:49 UTCEPSS rescore
  12. 2026-08-18 13:49 UTCEPSS rescore
  13. 2026-08-18 09:41 UTCGHSA enrichment
  14. 2026-08-17 21:02 UTCEG score recompute
  15. 2026-08-17 21:02 UTCGHSA enrichment
  16. 2026-08-17 13:47 UTCEPSS rescore
  17. 2026-08-17 08:23 UTCGHSA enrichment
  18. 2026-08-16 19:45 UTCEG score recompute
  19. 2026-08-16 19:45 UTCGHSA enrichment
  20. 2026-08-16 14:56 UTCEPSS rescore
  21. 2026-08-16 14:56 UTCEPSS rescore
  22. 2026-08-16 07:05 UTCEG score recompute
  23. 2026-08-16 07:05 UTCGHSA enrichment
  24. 2026-08-16 02:15 UTCEPSS rescore
  25. 2026-08-15 18:27 UTCGHSA enrichment
Show 15 more
  1. 2026-08-15 05:48 UTCEG score recompute
  2. 2026-08-15 05:48 UTCGHSA enrichment
  3. 2026-08-15 01:31 UTCEPSS rescore
  4. 2026-08-14 17:09 UTCEG score recompute
  5. 2026-08-14 17:09 UTCGHSA enrichment
  6. 2026-08-14 10:16 UTCEG score recompute
  7. 2026-08-14 10:16 UTCGHSA enrichment
  8. 2026-08-13 22:00 UTCEPSS rescore
  9. 2026-08-13 21:37 UTCGHSA enrichment
  10. 2026-08-13 08:58 UTCEG score recompute
  11. 2026-08-13 08:58 UTCGHSA enrichment
  12. 2026-08-12 20:20 UTCEG score recompute
  13. 2026-08-12 19:46 UTCEG score recompute
  14. 2026-08-12 19:21 UTCEG score recompute
  15. 2026-08-12 19:20 UTCMITRE cvelistV5first tracked

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 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72794 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 v4.0 base score of 8.6 (CNA self-assessment; NVD's own analysis pending).
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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