VULNERABILITY INTELLIGENCE

CVE-2026-44695

CVSS score5.8 MEDIUM
EPSS probability0.13%
CISA KEVNot currently listed
Published2026-05-11
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N

Description

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.

Weakness classification

  • CWE-352: Cross-Site Request Forgery (CSRF)

Primary references