Auth bypass in Getoutline Outline
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` ar…
Vulnerability class: IDOR (Insecure Direct Object Reference)
EPSS: 0.000 (11.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.
Affected products
- Getoutline Outline
- Outline — versions >= 0.86.0, < 1.7.0
Weakness classification (CWE)
References
- https://github.com/outline/outline/security/advisories/GHSA-23jj-rp48-w7q7 (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- https://github.com/outline/outline/commit/1b91a295e10f58a1088c54f533773788325ff460 (Patch, x_refsource_MISC)
- https://github.com/outline/outline/releases/tag/v1.7.0 (x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-41649?
- CVE-2026-41649 is a high-severity vulnerability in Getoutline Outline, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.7/10. Published 2026-04-28.
- How severe is CVE-2026-41649?
- High severity. CVSS v3 base score is 7.7 out of 10.