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CVE-2026-41894

SiYuan: Incomplete Fix Bypass for CVE-2026-30869: Path Traversal via Double URL Encoding in `/export/` Endpoint PUBLISHED

Description (CNA)

SiYuan is an open-source personal knowledge management system. Prior to 3.6.5, the fix for CVE-2026-30869 only added a denylist check (IsSensitivePath) but did not address the root cause — a redundant url.PathUnescape() call in serveExport(). An authenticated attacker can use double URL encoding (%252e%252e) to traverse directories and read arbitrary workspace files including the full SQLite database (siyuan.db), kernel log, and all user documents. This vulnerability is fixed in 3.6.5.

Affected (CNA)

Vendor / productVersions
siyuan-note / siyuanaffected < 3.6.5

CWE

CWE-22

References

ADP enrichment

CISA-ADP

No English description supplied.