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CVE-2026-77086: Improper Limitation of a Pathname to a Restricted Directory

🗓️ 21 Aug 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com

Authenticated admin path traversal in SiYuan before v3.7.4 allows arbitrary file write.

Related
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-77086
21 Aug 202612:07
–circl
cve
CVE
CVE-2026-77086
21 Aug 202611:05
–cve
cvelist
Cvelist
CVE-2026-77086 SiYuan before v3.7.4 Path Traversal via packageName
21 Aug 202611:05
–cvelist
euvd
EUVD
EUVD-2026-63898
21 Aug 202611:05
–euvd
nvd
NVD
CVE-2026-77086
21 Aug 202611:17
–nvd
ptsecurity
Positive Technologies
PT-2026-79358
21 Aug 202600:00
–ptsecurity
vulnrichment
Vulnrichment
CVE-2026-77086 SiYuan before v3.7.4 Path Traversal via packageName
21 Aug 202611:05
–vulnrichment

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26 Aug 2026 00:00Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.19.1
CVSS 49.4
EPSS0.01028
SSVC
0