CVE-2026-77067Public exploitNetwork attack vector

Authenticated blind SSRF via stored webhook URL

Published Aug 20, 2026 · Updated Aug 20, 2026

Server-side request forgery in Omnivore allows remote authenticated users to reach internal services via stored webhook URLs. In packages/api/src/resolvers/webhooks/index.ts, setWebhookResolver saves input.url directly, and packages/api/src/jobs/call_webhook.ts later passes the stored URL, method, and content type to axios.request without revalidating the destination. Any authenticated account that can register a webhook can trigger blind requests to private or link-local endpoints when subscribed events fire, but responses are not returned through the API and are only reflected in server logging.

CVSS severity5.3
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in Omnivore allows remote authenticated users to reach internal services via stored webhook URLs. In packages/api/src/resolvers/webhooks/index.ts, setWebhookResolver saves input.url directly, and packages/api/src/jobs/call_webhook.ts later passes the stored URL, method, and content type to axios.request without revalidating the destination. Any authenticated account that can register a webhook can trigger blind requests to private or link-local endpoints when subscribed events fire, but responses are not returned through the API and are only reflected in server logging.

The record

CVE
CVE-2026-77067
Published
Aug 20, 2026
Updated
Aug 20, 2026
Vendor
Omnivore
Product
Omnivore
Classifications
CWE-918
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <c4d7d8562e6b9aabb1d8e4dabca268e314baa43a

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Omnivore · Omnivoreversion=0 <c4d7d8562e6b9aabb1d8e4dabca268e314baa43a

Published CVSS scores

5.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
5.0VulnCheckCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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