Vulnerability Description
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 Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/outline/outline/blob/v1.7.1/server/queues/processors/UserDele
- https://github.com/outline/outline/commit/e044014cea958962fc9f5e2b8f6ff1d8cadd67
- https://github.com/outline/outline/releases/tag/v1.8.0
- https://github.com/outline/outline/security/advisories/GHSA-33jq-x32c-3ccw
- https://www.vulncheck.com/advisories/outline-before-1.8.0-information-disclosure
- https://github.com/outline/outline/security/advisories/GHSA-33jq-x32c-3ccw
FAQ
What is CVE-2026-113611?
CVE-2026-113611 is a vulnerability with a CVSS score of 4.9 (MEDIUM). 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 Webho...
How severe is CVE-2026-113611?
CVE-2026-113611 has been rated MEDIUM with a CVSS base score of 4.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-113611?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.