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CVE-2026-111915— Yank Note before 3.93.1 Path Traversal via /api/help Endpoint

Quick assessment

Affected
purocean Yank Note
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Yank Note 3.93.1 之前的版本存在路径遍历漏洞。未经认证的远程攻击者可通过 接口的 或 参数读取任意文件。攻击者可构造包含重复 段的路径，从而绕过该公开白名单端点中仅执行单次替换的清理机制，进而读取 SSH 密钥、配置文件或笔记内容。

CVSS 5.9 · Medium EPSS 0.46% · P38

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
purocean Yank Note < 3.93.1 affected
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I. Basic Information for CVE-2026-111915

Vulnerability Information
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Vulnerability Title
Yank Note before 3.93.1 Path Traversal via /api/help Endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
Yank Note before 3.93.1 contains a path traversal vulnerability that allows unauthenticated remote attackers to read arbitrary files via the path or doc parameter of /api/help. Attackers can supply repeated '../' segments, which bypass the single-replacement sanitization in the publicly allowlisted endpoint, to read SSH keys, configuration, or notes.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
purocean Yank Note 0 ~ 3.93.1 -

II. Public POCs for CVE-2026-111915

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-111915

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Vendor Advisories for CVE-2026-111915 (1)

Vendor Pages for CVE-2026-111915 (1)

Other References for CVE-2026-111915 (1)

IV. Related Vulnerabilities

Same weakness: CWE-22

V. Comments for CVE-2026-111915

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