Outline before 1.8.0 Information Disclosure via Orphaned Webhook Subscriptions
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.
CVE-2026-113611
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-113611
outline
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/outline/outline",
"vendor": "outline",
"product": "outline",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "1.8.0",
"versionType": "semver"
}
],
"packageURL": "pkg:github/outline/outline",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-113611
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #52540 · Revision 1
- Added to Heist Feed
- Publisher date