CVE-2026-77067

01/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.

02/References7

• github.com/omnivore-app/omnivore
• github.com/omnivore-app/omnivore/blob/0d66408746788e07cec439285…
• github.com/omnivore-app/omnivore/blob/0d66408746788e07cec439285…
• github.com/omnivore-app/omnivore/commit/c4d7d8562e6b9aabb1d8e4d…
• github.com/omnivore-app/omnivore/issues/4647
• www.vulncheck.com/advisories/omnivore-stored-server-side-reques…
• github.com/omnivore-app/omnivore/issues/4647