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CVE-2026-74903

SiYuan before v3.7.4 Insufficient Access Control via spinBlockDOM PUBLISHED

Description (CNA)

SiYuan before v3.7.4 contains an insufficient access control vulnerability in the /api/lute/spinBlockDOM endpoint, which is guarded only by CheckAuth middleware instead of CheckAdminRole like its sibling endpoint. Authenticated users with RoleEditor or RoleReader roles can invoke the endpoint to transform arbitrary DOM input, and large payloads cause endpoint starvation through per-path mutex serialization.

Affected (CNA)

Vendor / productVersions
siyuan-note / siyuanaffected 0 before 3.7.4; unaffected 3.7.4

CWE

CWE-400

References

ADP enrichment

CISA-ADP

No English description supplied.