CVE-2026-100642

HIGHCVSS 7.6

SiYuan versions from v2.1.0 before v3.8.4 contain a cross-site request forgery vulnerability in the CheckAuth lock-screen pass-through branch that grants administrator access to loopback requests without validating Origin headers. Attackers can craft malicious web pages that force victims to terminate the kernel process, read workspace configuration and proxy settings, and trigger administrative actions via zero-credential cross-origin requests from the victim's browser.

Published 2026-09-26 · last modified 2026-09-26

Full record at NVD ↗

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Ncerio by BeyondNets · data from NVD, CISA KEV, EPSS.