Medium severity6.6NVD Advisory· Published Aug 22, 2026

CVE-2026-62204

Description

SiYuan versions before v3.7.4 fail to validate that packageName matches the downloaded package content in bazaar install endpoints. Attackers with same-origin access can overwrite existing trusted plugins by supplying mismatched packageName and repoURL parameters, achieving persistence across application restarts.

Affected products

Siyuan Note/Siyuanllm-fuzzy
Range: <v3.7.4

Patches

Vulnerability mechanics

References

github.com/siyuan-note/siyuan/security/advisories/GHSA-rpx2-p6hp-x5gjnvd
www.vulncheck.com/advisories/siyuan-before-plugin-overwrite-via-bazaar-installnvd

News mentions

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cvss	0.429
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000