Siyuan
CVE-2026-30869
CRITICAL
GHSA-2h2p-mvfx-868w
Severity by source
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L
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
Lifecycle Timeline
3DescriptionGitHub 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.
AnalysisAI
SiYuan prior to 3.5.10 has a path traversal vulnerability enabling arbitrary file access through crafted API requests.
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | SiYuan versions prior to 3.5.10 with unauthenticated access to /export endpoint. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 9.3 — SiYuan continues to have file system access vulnerabilities. Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker uses path traversal to read sensitive files from the SiYuan server. |
| Remediation | Update to 3.5.10+. Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify all SiYuan instances and versions in use across the organization; isolate affected systems from production networks if business operations permit. …
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Vendor StatusVendor
SUSE
Severity: CriticalShare
External POC / Exploit Code
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