CVE-2026-87815

SiYuan versions before v3.8.2 contain a path traversal vulnerability in the /api/riff/removeRiffDeck endpoint that fails to validate the deckID parameter. An authenticated administrator can supply path traversal sequences to delete arbitrary .deck and .cards files outside the workspace directory.

CVSS v3 8.7 HIGH

8.7^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.3 / Impact : 5.8

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-94vh-rpgr-rpwc
https://www.vulncheck.com/advisories/siyuan-before-3.8.2-path-traversal-via-removeriffdeck
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-94vh-rpgr-rpwc

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-09 12:17

Updated : 2026-09-14 14:17

NVD link : CVE-2026-87815

Mitre link : CVE-2026-87815

CVE.ORG link : CVE-2026-87815

JSON object : View

Products Affected

No product.

CWE

CWE-73

External Control of File Name or Path

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