What is the CVSS score of CVE-2026-30869?

CVE-2026-30869 has a CVSS 3.1 base score of 9.3 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L. EPSS exploitation probability: 0.4%.

Which versions of Siyuan are affected by CVE-2026-30869?

A critical path traversal vulnerability in SiYuan knowledge management system (versions ≤3.5.10) could allow attackers to access, modify, or exfiltrate sensitive organizational data stored within the…. A patch is available.

How to fix or mitigate CVE-2026-30869?

Within 24 hours: Identify all SiYuan instances and versions in use across the organization; isolate affected systems from production networks if business operations permit. Within 7 days: Implement network segmentation to restrict SiYuan access to authorized users only; deploy WAF rules to block path traversal patterns; disable any non-essential SiYuan features. Within 30 days: Migrate critical data to patched versions or alternative solutions; monitor vendor channels for patch availability and apply immediately upon release.

Siyuan CVE-2026-30869

CRITICAL

Path Traversal (CWE-22)

2026-03-10 security-advisories@github.com

GHSA-2h2p-mvfx-868w

RCE Path Traversal Siyuan Suse

9.3

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

9.3 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L

SUSE

CRITICAL

qualitative

Primary rating from GitHub Advisory.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

None

Availability

Low

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

CVE Published

Mar 10, 2026 - 17:40 nvd

CRITICAL 9.3

DescriptionGitHub Advisory

SiYuan is a personal knowledge management system. Prior to 3.5.10, a path traversal vulnerability in the /export endpoint allows an attacker to read arbitrary files from the server filesystem. By exploiting double‑encoded traversal sequences, an attacker can access sensitive files such as conf/conf.json, which contains secrets including the API token, cookie signing key, and workspace access authentication code. Leaking these secrets may enable administrative access to the SiYuan kernel API, and in certain deployment scenarios could potentially be chained into remote code execution (RCE). This vulnerability is fixed in 3.5.10.