CVE-2026-24901: high-severity vulnerability in outline
Outline's IDOR allows unauthorized viewing and seizing of private deleted drafts
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.1epss 0.3%
Outline is a service that allows for collaborative documentation. Prior to 1.4.0, an Insecure Direct Object Reference (IDOR) vulnerability in the document restoration logic allows any team member to unauthorizedly restore, view, and seize ownership of deleted drafts belonging to other users, including administrators. By bypassing ownership validation during the restore process, an attacker can access sensitive private information and effectively lock the original owner out of their own content. Version 1.4.0 fixes the issue.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Affected products
outline · outlineRelated CVEs — outline
In the same product, most dangerous first.
CVE-2026-113611MEDIUMOutline before 1.8.0 Information Disclosure via Orphaned Webhook SubscriptionsEPSS 0.5%CVE-2024-40626HIGHStored Cross-site Scripting (XSS) vulnerability in Outline editorEPSS 0.5%CVE-2026-54573MEDIUMAuthorization Bypass in API Key/OAuth Scopes via Path Parsing DiscrepancyEPSS 0.5%CVE-2026-33640CRITICALOutline has a rate limit bypass that allows brute force of email login OTPEPSS 0.5%CVE-2026-25062MEDIUMOutline Affected an Arbitrary File Read via Path Traversal in JSON ImportEPSS 0.4%CVE-2025-58351MEDIUMOutline's Local File Storage Feature can Cause CSP BypassEPSS 0.4%