CVE-2026-77067
Omnivore Stored Server-Side Request Forgery via the setWebhook Mutation
- State
- Published
- Severity
- 5.3 Medium
- Published
- Aug 20, 2026
- Updated
- Sep 24, 2026
- Reserved
- Aug 20, 2026
Description
The setWebhookResolver in packages/api/src/resolvers/webhooks/index.ts stores the caller-supplied url without any address validation, and the file imports no validation helper. When a subscribed event fires, callWebhook in packages/api/src/jobs/call_webhook.ts issues axios.request with that url, the method and Content-Type recorded on the webhook, and a JSON body carrying the event data, so an authenticated user can make the server send repeated attacker-shaped requests to internal endpoints, including link-local metadata addresses. The request is blind: callWebhook discards the result and writes only a success line or the axios error to the server log, so the response is not returned through the API.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.3 Medium | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N | VulnCheck |
| 3.1 | 5.0 Medium | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N | VulnCheck |
Weaknesses
- CWE-918 Server-Side Request Forgery (SSRF)
Affected Products
| Product | Versions |
|---|---|
omnivoreomnivore-app |
|
References
- GitHub Issue #4647issue-tracking
- fix(): fix ssrf via scan feeds and webhooks (#4656)patch
- setWebhookResolver storing the URL unvalidated before the fixtechnical-description
- callWebhook dispatching axios.request to the stored URLtechnical-description
- https://github.com/omnivore-app/omnivoreproduct
- VulnCheck Advisory: Omnivore Stored Server-Side Request Forgery via the setWebhook Mutationthird-party-advisory
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