CVE-2026-111915

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.

CVSS 4.0

8.2CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS

0.5% chance of exploitation in the next 30 days; higher than 39% of CVEs (scores of 2026-10-25)

CWE

CWE-22

Published

2026-10-19

Modified

2026-10-19

Record from

the NVD, synced 2026-10-21

References

• https://github.com/purocean/yn/blob/v3.93.0/src/main/server/index.ts
• https://github.com/purocean/yn/commit/d3b0ad27f7f6388b878eefd828557ae2d2a8789b
• https://github.com/purocean/yn/issues/543
• https://github.com/purocean/yn/releases/tag/v3.93.1
• https://www.vulncheck.com/advisories/yank-note-before-3.93.1-path-traversal-via-api-help-endpoint

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