HIGHVulnerability
Verified
Global

NVD HIGH: CVE-2026-100637 — SiYuan versions before v3.8.4 contain a path traversal vulnerability in the chec...

·Source: NIST NVD

Updated:

Executive Summary

SiYuan versions before v3.8.4 contain a path traversal vulnerability in the checkoutRepo endpoint that allows authenticated administrators to write JSON files outside the workspace. Attackers can supply a sessionID parameter containing directory traversal sequences to overwrite arbitrary JSON files in pre-existing kernel-writable directories outside workspace boundaries.

Analysis

SiYuan versions before v3.8.4 contain a path traversal vulnerability in the checkoutRepo endpoint that allows authenticated administrators to write JSON files outside the workspace. Attackers can supply a sessionID parameter containing directory traversal sequences to overwrite arbitrary JSON files in pre-existing kernel-writable directories outside workspace boundaries. CVSS Score: 7.6. Published: 2026-09-26T14:16:45.320.

Indicators of Compromise (1)

CVE (1)
CVE-2026-100637
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Sep 26, 2026. Verified by: NIST.

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