Auth bypass in Allegro Ralph
CVE-2026-111683
Allegro Ralph through 20260902.1 contains a missing authorization vulnerability that allows authenticated staff users to bypass rack model permissions because RalphPermission skips checks for views without a queryset. Attackers can call DCAssetsView and SRRacksAPIView at /api/rack/<id> and /api/server_room/<id> to read asset hostnames, serials and management IPs, and to modify, move or create racks.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/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
Weakness classification (CWE)
References
- hackmd.io/@hieuPenguinnn/ralph-dc-view-rack-api-missing-authorization (third-party-advisory)
- github.com/allegro/ralph/blob/20260902.1/src/ralph/dc_view/views/api.py (technical-description)
- github.com/allegro/ralph/blob/20260902.1/src/ralph/lib/permissions/api.py (technical-description)
- github.com/allegro/ralph (product)
- www.vulncheck.com/advisories/allegro-ralph-through-20260902.1-missing-authoriza… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-111683?
- CVE-2026-111683 is a medium-severity vulnerability in Allegro Ralph, classified under Missing Authorization. CVSS score: 5.4/10. Published 2026-10-16.
- How severe is CVE-2026-111683?
- Medium severity. CVSS v3 base score is 5.4 out of 10.