CVE-2026-113611
CVE-2026-113611 · Outline before 1.8.0 Information Disclosure via Orphaned Webhook Subscriptions
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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 6.9 · Medium · EPSS 0.5% · Fix available
- Published
- Updated
Affected products and versions
outline
- Versions
- ≥ 0, < 1.8.0: Affected (semver)
Update to 1.8.0
Original sources
- https://github.com/outline/outline/security/advisories/GHSA-33jq-x32c-3ccw
- https://github.com/outline/outline/commit/e044014cea958962fc9f5e2b8f6ff1d8cadd676f
- https://github.com/outline/outline/releases/tag/v1.8.0
- https://github.com/outline/outline/blob/v1.7.1/server/queues/processors/UserDeletedProcessor.ts
- https://www.vulncheck.com/advisories/outline-before-1.8.0-information-disclosure-via-orphaned-webhook-subscriptions
- https://nvd.nist.gov/vuln/detail/CVE-2026-113611