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CVE-2026-18640

7.1 high SSVC exploitation: none Awaiting Analysis
NVD · CVE.org

The NewNotebook API does not sufficiently sanitize its parameters allowing an authenticated user with NOTEBOOK_EDIT permission to write the notebook record outside the org's data store directory. The file written must have an extension of ".json.db" but can otherwise overwrite other metadata files (such as ACL records, hunts etc). This can corrupt these files and cause data corruption.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 1

  1. First seenCVSS 7.1NVD modified 2026-10-23 19:10

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 1