CVE-2026-44695

Outline is a service that allows for collaborative documentation. Prior to 1.7.1, the Slack integration callback for GET /auth/slack.post accepts an unsigned, session-independent OAuth state value. A third party who can obtain a Slack OAuth code for the same Outline Slack client can make a logged-in Outline user complete the callback and link that user's Outline account to the attacker's Slack team_id and user_id. The linked Slack identity can then use the Slack /outline search command as the victim Outline user. This vulnerability is fixed in 1.7.1.

CVSS v3 5.8 MEDIUM

5.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.3 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/outline/outline/security/advisories/GHSA-mjgw-5j7q-gv8v	Exploit Vendor Advisory
https://github.com/outline/outline/security/advisories/GHSA-mjgw-5j7q-gv8v	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:getoutline:outline:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-11 22:22

Updated : 2026-06-17 10:51

NVD link : CVE-2026-44695

Mitre link : CVE-2026-44695

CVE.ORG link : CVE-2026-44695

JSON object : View

Products Affected

getoutline

outline

CWE

CWE-352

Cross-Site Request Forgery (CSRF)

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