What is CVE-2026-78412?

CVE-2026-78412 is a medium-severity vulnerability in Rapid7 Velociraptor, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.9/10. Published 2026-10-05.

How severe is CVE-2026-78412?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Auth bypass in Rapid7 Velociraptor

CVE-2026-78412

Velociraptor's WatchEvent gRPC API can specify the OrgId of the org from which events should be streamed. The server checks the API permissions against the caller's Org instead of the requested Org. This allows a user with API access in one org to read events from another org for which they have no access.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published 2026-10-05 · last modified 2026-10-06.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Rapid7 Velociraptor

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

docs.velociraptor.app/announcements/advisories/cve-2026-78412

Frequently asked questions

What is CVE-2026-78412?: CVE-2026-78412 is a medium-severity vulnerability in Rapid7 Velociraptor, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.9/10. Published 2026-10-05.
How severe is CVE-2026-78412?: Medium severity. CVSS v3 base score is 4.9 out of 10.