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CVE-2026-85174 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

SiYuan before v3.8.2 logs API tokens from query parameters in plaintext to an accessible log file when full-text search requests exceed timing thresholds. Authenticated attackers can read the log file via the getFile endpoint to recover admin API tokens and gain permanent administrative access.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

CNA: [email protected]CVSS-B:8.8 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-3wvc-5754-gp67	CISA-ADP	AdvisoryExploitRemedyVendor
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-3wvc-5754-gp67	[email protected]	AdvisoryExploitRemedyVendor
https://www.vulncheck.com/advisories/siyuan-before-3.8.2-api-token-exposure-via-log-file	[email protected]	Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-532	Insertion of Sensitive Information into Log File	[email protected]

Affected Products

Product	Versions
SiYuan	<= 3.8.1 (semver)
CPE cpe:2.3:a:b3log:siyuan:::::::: Remediation Upgrade: 3.8.2moderate effort

Change History

2 change records found show changes

Date	Action	Recorded By
Sep 5, 2026	CVE Modified	CISA-ADP
Sep 3, 2026	New CVE Received	[email protected]