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CVE-2026-77067

5.0 · MEDIUM

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.

Published Aug 20, 2026CWE-918EPSS 0.27%

Overview

CVE-2026-77067 is a medium-severity vulnerability. It was published on August 20, 2026 and has a CVSS 3.1 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/omnivore-app/omnivoreGitHubgithub.com/omnivore-app/omnivore/blob/0d66408746788e07cec43928581b2567308ab575/packages/api/src/jobs/call_webhook.ts#L36GitHubgithub.com/omnivore-app/omnivore/blob/0d66408746788e07cec43928581b2567308ab575/packages/api/src/resolvers/webhooks/index.ts#L108GitHubgithub.com/omnivore-app/omnivore/commit/c4d7d8562e6b9aabb1d8e4dabca268e314baa43aGitHubgithub.com/omnivore-app/omnivore/issues/4647Refwww.vulncheck.com/advisories/omnivore-stored-server-side-request-forgery-via-the-setwebhook-mutationGitHubgithub.com/omnivore-app/omnivore/issues/4647

How CyberStrike helps

Frequently asked questions

What is CVE-2026-77067?

CVE-2026-77067 is a medium-severity vulnerability. It was published on August 20, 2026 and has a CVSS 3.1 base score of 5.0 (MEDIUM).

How severe is CVE-2026-77067?

This vulnerability has a CVSS 3.1 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-77067?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-77067?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-77067 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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