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CVE-2026-100634

4.7 Moyenne

Publiée le 26/09/2026 à 16:16 · Modifiée le 08/10/2026 à 18:16 · Analyse NVD reportée · Source : disclosure@vulncheck.com

Description

SiYuan before v3.8.4 does not validate the sender or restrict recipients in the 'siyuan-send-windows' IPC handler of the Electron main process (app/electron/main.js). The handler ignores event.sender and forwards any received payload to every BrowserWindow returned by BrowserWindow.getAllWindows(), including windows belonging to other opened workspaces. A renderer connected to an attacker-controlled remote kernel can therefore send {cmd: "lockscreenByMode"} and have it delivered across the workspace boundary; a sibling workspace window whose lockScreenMode is set to 1 invokes lockScreen(). Repeated messages allow the remote workspace to repeatedly lock unrelated local workspace windows, causing a limited denial of service. No confidentiality, integrity, or code-execution impact was observed.

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Produits concernés

Scores CVSS

VersionScoreSourceVecteur
4.0 5.3 Moyenne disclosure@vulncheck.com CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
3.1 4.7 Moyenne disclosure@vulncheck.com CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:L

Faiblesses (CWE)

Références

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