CVE-2026-113611mediumCWE-863

CVE-2026-113611: medium-severity vulnerability in outline

Outline before 1.8.0 Information Disclosure via Orphaned Webhook Subscriptions

Published · Updated

Follow this CVE+ Monitor outline

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

13Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 6.9epss 0.5%
Outline before 1.8.0 contains an improper access revocation vulnerability that allows deleted administrators to keep receiving document contents because UserDeletedProcessor never disables their WebhookSubscription rows. Former admins who registered webhooks before deletion continue receiving full document bodies, including Markdown and Yjs data, via DeliverWebhookTask for every matching workspace event.
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products
outline · outline
Related CVEs — outline

In the same product, most dangerous first.

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%CVE-2026-43888HIGHOutline: Zip Extraction Path Escape via PATH_MAX Truncation in Collection ImportEPSS 0.4%