Is CVE-2026-111915 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-111915 being exploited in the wild.

How severe is CVE-2026-111915?

Medium severity, with a CVSS score of 5.9, published 19 October 2026.

Which products and versions are affected?

Purocean Yank Note before 3.93.1.

Is there a fix for CVE-2026-111915?

Yes: fixed in 3.93.1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-111915 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-111915?

Check whether you run Purocean Yank Note at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-111915: Yank Note path traversal via /api/help

CVE-2026-111915 · Severity: medium · CVSS 5.9 · Published 2026-10-19

Yank Note is a note-taking application that provides an API for accessing help files. Before version 3.93.1, an unauthenticated attacker could read arbitrary files from the server by manipulating the path parameter with repeated directory traversal sequences, potentially exposing SSH keys, configuration files, and private notes.

Technologies: Purocean Yank Note. Vendors: Purocean.

Quick answers

Is CVE-2026-111915 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-111915 being exploited in the wild.
How severe is CVE-2026-111915?: Medium severity, with a CVSS score of 5.9, published 19 October 2026.
Which products and versions are affected?: Purocean Yank Note before 3.93.1.
Is there a fix for CVE-2026-111915?: Yes: fixed in 3.93.1. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-111915 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-111915?: Check whether you run Purocean Yank Note at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

Fixed in: 3.93.1

Technical details

The /api/help endpoint used a single-pass string replacement to sanitize directory traversal characters, which could be bypassed by supplying repeated '../' segments. An attacker can send a request to /api/help with a crafted path or doc parameter to traverse outside the intended help directory and read any file accessible to the Yank Note process, without authentication.

Affected products

purocean Yank Note before 3.93.1

Timeline

2026-10-19: disclosed
2026-10-16: patched: Fix committed via PR #545 before advisory publication

References

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