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Medium

Outline before 1.8.0 Information Disclosure via Orphaned Webhook Subscriptions

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

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
Read the original announcement