CVE-2026-41649

Outline is a service that allows for collaborative documentation. The `shares.create` API endpoint starting in version 0.86.0 and prior to version 1.7.0 has an insecure direct object reference.. When both `collectionId` and `documentId` are provided in the request, the authorization logic only checks access to the collection, completely ignoring the document. This allows an authenticated attacker to generate a valid public share link for any document on the platform, including documents belonging to other workspaces. The full document contents can then be retrieved via the `documents.info` endpoint. Version 1.7.0 contains a patch.

• CWE-639

• https://github.com/outline/outline/commit/1b91a295e10f58a1088c54f533773788325ff460Patch
• https://github.com/outline/outline/releases/tag/v1.7.0Release Notes
• https://github.com/outline/outline/security/advisories/GHSA-23jj-rp48-w7q7Exploit, Vendor Advisory
• https://github.com/outline/outline/security/advisories/GHSA-23jj-rp48-w7q7Exploit, Vendor Advisory

Published

Apr 28, 2026

Last Modified

Jul 24, 2026

Status

Analyzed

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