cvedb.io
CVE-2026-34600
MEDIUM · CVSS 5.7
EPSS exploitation probability: 0%
Published 2026-05-19T23:16:57.290 · Last modified 2026-06-17T10:39:18.113

Summary

Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Versions 3.5.2 and prior contain a logic error in the delta API that allows share recipients to download notes that are no longer shared with them, related to but not fully fixed by the prior patch in #14289. In ChangeModel.delta, when DELTA_INCLUDES_ITEMS is enabled (the default), the latest state of items is attached to delta output without verifying that those items are still shared with the requesting user, and the existing removal logic only filters items deleted for all users. Additionally, the change compression logic incorrectly reduces create - delete to NOOP, which is unsafe because compression is applied per page and an item can have multiple create events; if an earlier cre

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.