{"id":"CVE-2026-77067","title":"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","summary":"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/s…","severity":"medium","cvss":5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N","cwe":["CWE-918"],"vendor":"omnivore-app","product":"omnivore","affected":["omnivore < c4d7d8562e6b9aabb1d8e4dabca268e314baa43a"],"published":"2026-08-20","updated":"2026-09-24","sourceUpdated":"2026-09-24T20:06:30.133","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-77067","references":[{"url":"https://github.com/omnivore-app/omnivore","label":"disclosure@vulncheck.com"},{"url":"https://github.com/omnivore-app/omnivore/blob/0d66408746788e07cec43928581b2567308ab575/packages/api/src/jobs/call_webhook.ts#L36","label":"disclosure@vulncheck.com"},{"url":"https://github.com/omnivore-app/omnivore/blob/0d66408746788e07cec43928581b2567308ab575/packages/api/src/resolvers/webhooks/index.ts#L108","label":"disclosure@vulncheck.com"},{"url":"https://github.com/omnivore-app/omnivore/commit/c4d7d8562e6b9aabb1d8e4dabca268e314baa43a","label":"disclosure@vulncheck.com"},{"url":"https://github.com/omnivore-app/omnivore/issues/4647","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/omnivore-stored-server-side-request-forgery-via-the-setwebhook-mutation","label":"disclosure@vulncheck.com"},{"url":"https://github.com/omnivore-app/omnivore/issues/4647","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.00385,"epssPercentile":0.29714,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-08-20T14:48:05.490595Z"},"ingestedAt":"2026-09-24T15:45:56.699Z","slug":"CVE-2026-77067","body":"## Overview\n\nThe 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":40,"depthScoreParts":{"impact":27.5,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}