CVE-2026-126264

SiYuan before 3.8.9 Sensitive File Disclosure via /api/file/getFile

Published Nov 13, 2026 CVSS 4.0 · 8.3 High EPSS n/a KEV · Not listed
Description
SiYuan before 3.8.9 contains an information disclosure vulnerability that allows authenticated Reader users to retrieve credential-named widget files by bypassing the sensitive-path guard in getFile. Attackers can request paths like /data/widgets/<package>/credentials.json for publish-referenced widgets to obtain API keys, tokens, or other stored secrets.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Description SiYuan before 3.8.9 contains an information disclosure vulnerability that allows authenticated Reader users to retrieve credential-named widget files by bypassing the sensitive-path guard in getFile. Attackers can request paths like /data/widgets/<package>/credentials.json for publish-referenced widgets to obtain API keys, tokens, or other stored secrets.
Title SiYuan before 3.8.9 Sensitive File Disclosure via /api/file/getFile
First Time appeared B3log
B3log siyuan
Weaknesses CWE-200
CPEs cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:*
Vendors & Products B3log
B3log siyuan
References
Metrics cvssV3_1

{'score': 7.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N'}

cvssV4_0

{'score': 8.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 13, 2026, 9:36 AM
Reserved
Nov 10, 2026, 8:13 PM
Status
Deferred
Published
Nov 13, 2026, 10:17 AM
Modified
Nov 13, 2026, 10:17 AM