CVE-2026-41649
Outline has IDOR in document share creation that allows unauthorized access to private documents across workspaces
Description
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.
INFO
Published Date :
April 28, 2026, 10:16 p.m.
Last Modified :
May 1, 2026, 3:54 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update Outline to version 1.7.0 or later.
- Verify collection and document access controls.
- Review existing share links for unauthorized access.
- Remove any compromised or unauthorized share links.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-41649.
| URL | Resource |
|---|---|
| https://github.com/outline/outline/commit/1b91a295e10f58a1088c54f533773788325ff460 | Patch |
| https://github.com/outline/outline/releases/tag/v1.7.0 | Release Notes |
| https://github.com/outline/outline/security/advisories/GHSA-23jj-rp48-w7q7 | Exploit Vendor Advisory |
| https://github.com/outline/outline/security/advisories/GHSA-23jj-rp48-w7q7 | Exploit Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-41649 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-41649
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-41649 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-41649 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
May. 01, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:getoutline:outline:*:*:*:*:*:*:*:* versions from (including) 0.86.0 up to (excluding) 1.7.0 Added Reference Type GitHub, Inc.: https://github.com/outline/outline/commit/1b91a295e10f58a1088c54f533773788325ff460 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/outline/outline/releases/tag/v1.7.0 Types: Release Notes Added Reference Type CISA-ADP: https://github.com/outline/outline/security/advisories/GHSA-23jj-rp48-w7q7 Types: Exploit, Vendor Advisory Added Reference Type GitHub, Inc.: https://github.com/outline/outline/security/advisories/GHSA-23jj-rp48-w7q7 Types: Exploit, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Apr. 29, 2026
Action Type Old Value New Value Added Reference https://github.com/outline/outline/security/advisories/GHSA-23jj-rp48-w7q7 -
New CVE Received by [email protected]
Apr. 28, 2026
Action Type Old Value New Value Added Description 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. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N Added CWE CWE-639 Added Reference https://github.com/outline/outline/commit/1b91a295e10f58a1088c54f533773788325ff460 Added Reference https://github.com/outline/outline/releases/tag/v1.7.0 Added Reference https://github.com/outline/outline/security/advisories/GHSA-23jj-rp48-w7q7