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CVE-2026-123492: siyuan-note siyuan: SiYuan before 3.8.9 contains a nil pointer dereference vulnerability in privateCacheMiddleware that allows…

🗓️ 06 Nov 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com👁 2 Views

Authenticated DoS in SiYuan privateCacheMiddleware via reading nonexistent MCP resources.

Related
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-123492
6 Nov 202615:20
–circl
cve
CVE
CVE-2026-123492
6 Nov 202615:00
–cve
cvelist
Cvelist
CVE-2026-123492 SiYuan before 3.8.9 Nil Pointer Dereference DoS via MCP resources/read
6 Nov 202615:00
–cvelist
euvd
EUVD
EUVD-2026-118292
6 Nov 202615:00
–euvd
nvd
NVD
CVE-2026-123492
6 Nov 202615:17
–nvd
ptsecurity
Positive Technologies
PT-2026-138062
6 Nov 202600:00
–ptsecurity

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06 Nov 2026 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.14.9
CVSS 46.9
2