CVE-2026-77067 Omnivore Stored Server-Side Request Forgery via the setWebhook Mutation
Authenticated users can trigger server-side requests to internal endpoints via webhook URLs, potentially accessing sensitive internal resources.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-77067?
CVE-2026-77067 is a medium-severity server-side request forgery vulnerability in omnivore-app omnivore, published on 20 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-918
Which versions are affected by CVE-2026-77067?
How do I fix CVE-2026-77067?
No fix has been published for CVE-2026-77067 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-77067 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-77067 exists.
Sources
Also known as GHSA-w562-g8x6-3cj6.