CVE-2026-113611

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 v3 4.9 MEDIUM

4.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/outline/outline/blob/v1.7.1/server/queues/processors/UserDeletedProcessor.ts
https://github.com/outline/outline/commit/e044014cea958962fc9f5e2b8f6ff1d8cadd676f
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-via-orphaned-webhook-subscriptions
https://github.com/outline/outline/security/advisories/GHSA-33jq-x32c-3ccw

Configurations

No configuration.

History

23 Oct 2026, 02:16

Type	Values Removed	Values Added
References	~~() https://github.com/outline/outline/security/advisories/GHSA-33jq-x32c-3ccw -~~	() https://github.com/outline/outline/security/advisories/GHSA-33jq-x32c-3ccw -

20 Oct 2026, 16:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-20 16:17

Updated : 2026-10-23 02:16

NVD link : CVE-2026-113611

Mitre link : CVE-2026-113611

CVE.ORG link : CVE-2026-113611

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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