CVE-2026-111915
Yank Note before 3.93.1 Path Traversal via /api/help Endpoint
- State
- Published
- Severity
- 8.2 High
- Published
- Oct 19, 2026
- Updated
- Oct 19, 2026
- Reserved
- Oct 17, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.2 High | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 5.9 Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Products
| Product | Versions |
|---|---|
Yank Notepurocean |
|
References
- https://github.com/purocean/yn/issues/543issue-tracking
- https://github.com/purocean/yn/commit/d3b0ad27f7f6388b878eefd828557ae2d2a8789bpatch
- https://github.com/purocean/yn/blob/v3.93.0/src/main/server/index.tstechnical-description
- Yank Note v3.93.1 Release Notesrelease-notes
- VulnCheck Advisory: Yank Note before 3.93.1 Path Traversal via /api/help Endpointthird-party-advisory
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