CVE-2026-111683: Allegro Ralph through 20260902.1 Missing Authorization in Data Center Rack API

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-16 · updated 2026-10-23
Weakness: CWE-862

Description

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.

Affected products

allegro ralph: through 20260902.1

References

https://github.com/allegro/ralph
https://github.com/allegro/ralph/blob/20260902.1/src/ralph/dc_view/views/api.py#L17-L96
https://github.com/allegro/ralph/blob/20260902.1/src/ralph/lib/permissions/api.py#L194-L209
https://hackmd.io/@hieuPenguinnn/ralph-dc-view-rack-api-missing-authorization
https://www.vulncheck.com/advisories/allegro-ralph-through-20260902.1-missing-authorization-in-data-center-rack-api
https://hackmd.io/@hieuPenguinnn/ralph-dc-view-rack-api-missing-authorization

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