CVE-2026-113611Outline before 1.8.0 Information Disclosure via Orphaned Webhook Subscriptions
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
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
- 4.9 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
- Weakness (CWE)
- CWE-863
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 20, 2026
- First seen by InfoSec Signals
- Oct 20, 2026
Affected products
outline outline outline:outline (from the name) | before 1.8.0 | CNA record |
References
- https://github.com/outline/outline/security/advisories/GHSA-33jq-x32c-3ccwvendor-advisory
- https://github.com/outline/outline/commit/e044014cea958962fc9f5e2b8f6ff1d8cadd676fpatch
- https://github.com/outline/outline/releases/tag/v1.8.0release-notes
- https://github.com/outline/outline/blob/v1.7.1/server/queues/processors/UserDeletedProcessor.tstechnical-description
- https://www.vulncheck.com/advisories/outline-before-1.8.0-information-disclosure-via-orphaned-webhook-subscriptionsthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.