๐Ÿ” CVE Alert

CVE-2026-24901

HIGH 8.1

Outline's IDOR allows unauthorized viewing and seizing of private deleted drafts

CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th

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.

CWE CWE-639
Vendor outline
Product outline
Published Mar 17, 2026
Last Updated Mar 17, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None

Affected Versions

outline / outline
< 1.4.0

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
github.com: https://github.com/outline/outline/security/advisories/GHSA-gmr5-43f5-79f5