Medium 4.4Published Oct 28, 2026

CVE-2026-118680SiYuan 3.8.7 through 3.8.8 Path Traversal via GLOBALROOT Alias

Updated under an hour ago (Oct 29, 2026, 1:50 PM ET)

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No exploitation reported and no EPSS estimate yet.

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SiYuan 3.8.7 through 3.8.8 fails to normalize Windows GLOBALROOT device-namespace aliases, bypassing the IsSensitivePath denylist. Attackers can invoke importStdMd with a GLOBALROOT-prefixed path to copy the API token and TLS private key into the publicly served assets directory.

CVSS: 4.4 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-22
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Oct 28, 2026
First seen by InfoSec Signals: Oct 28, 2026

Affected products

Affected products

siyuan-note siyuan siyuan_note:siyuan (from the name)	from 3.8.7 through 3.8.8	CNA record

References

References

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-gg3p-r4g8-vxg2	vendor-advisory
https://www.vulncheck.com/advisories/siyuan-3.8.7-through-3.8.8-path-traversal-via-globalroot-alias	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.