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Description

Outline is a service that allows for collaborative documentation. Prior to 1.4.0, an Insecure Direct Object Reference (IDOR) vulnerability in the document restoration logic allows any team member to unauthorizedly restore, view, and seize ownership of deleted drafts belonging to other users, including administrators. By bypassing ownership validation during the restore process, an attacker can access sensitive private information and effectively lock the original owner out of their own content. Version 1.4.0 fixes the issue.

PUBLISHED Reserved 2026-01-27 | Published 2026-03-17 | Updated 2026-03-17 | Assigner GitHub_M




HIGH: 8.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Problem types

CWE-639: Authorization Bypass Through User-Controlled Key

Product status

< 1.4.0
affected

References

github.com/...utline/security/advisories/GHSA-gmr5-43f5-79f5

cve.org (CVE-2026-24901)

nvd.nist.gov (CVE-2026-24901)

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