OCTOBER 13, 2026
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Case File

CVE-2026-92986

HIGH · CVSS 8.8 EPSS 0.82% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-17 · Last synced 2026-10-13

CyberRota Analysis

AI-Generated

SiYuan versions prior to 3.8.4 are vulnerable due to improper handling of document titles in the backlink dock tree, allowing attackers to inject malicious HTML through the rename API or crafted notebooks. This flaw enables the execution of arbitrary scripts in the Electron renderer, potentially leading to command execution on the host system. Organizations using SiYuan should prioritize patching to mitigate the risk of exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗ github.com ↗ github.com ↗ github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-92986
Severity
HIGH
CVSS
8.8
EPSS
0.82%

Original NVD Description

SiYuan before 3.8.4 renders document titles as HTML in the backlink dock tree without escaping markup characters. Attackers can set malicious titles through the rename API or crafted notebooks to execute scripts in the Electron renderer with access to child_process for command execution.