CVE-2026-77067

Omnivore Stored Server-Side Request Forgery via the setWebhook Mutation

MEDIUM
5
CVSS Score
Published: August 20, 2026 at 11:05 AM UTC
Updated: September 24, 2026 at 08:17 PM UTC
1 product affected across 1 vendorOmnivore

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Severity
MEDIUM5
Exploit prediction
EPSS 0.3%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < c4d7d8562e6b9aabb1d8e4dabca268e314baa43a

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-918

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