SEPTEMBER 19, 2026
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Case File

CVE-2026-59854

MEDIUM · CVSS 4.9 EPSS 0.28% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-09 · Last synced 2026-08-08

CyberRota Analysis

AI-Generated

The vulnerability affects SiYuan versions prior to 3.7.1, allowing authenticated users to exploit the POST /api/file/globalCopyFiles endpoint to access sensitive files, including credential files, due to an inadequate denylist. This could lead to unauthorized file exfiltration, posing a risk to the security of user credentials and sensitive data. Organizations using SiYuan should prioritize upgrading to versions 3.7.1-alpha.2 or 3.7.1 to mitigate this risk.

Public Exploit Signal

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

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CVE
CVE-2026-59854
Severity
MEDIUM
CVSS
4.9
EPSS
0.28%
Docker

Original NVD Description

SiYuan is an open-source personal knowledge management system. Prior to 3.7.1, POST /api/file/globalCopyFiles accepts attacker-supplied absolute source paths and relies on util.IsSensitivePath in kernel/util/path.go, whose denylist misses common home-directory credential files such as .git-credentials, .netrc, .pgpass, .kube/config, .docker/config.json, and .gnupg, allowing an authenticated administrator or API-token user to copy those files into the workspace and exfiltrate them through the file API. This issue is fixed in versions 3.7.1-alpha.2 and 3.7.1.