---
id: "CVE-2026-129357"
page: "https://infrastack.ai/live/CVE-2026-129357"
kind: "vulnerability"
aliases: ["CVE-2026-129357"]
title: "Magma: host middleware missing authorization check lets remote users bypass access control"
severity: "medium"
cvss: 6.5
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["infrastructure", "magma", "nms", "self-hosted", "telecom"]
not_affected_if: ["newer-version", "not-magma"]
published_at: "2026-11-15T03:16:46+00:00"
first_seen_at: "2026-11-15T03:33:39+00:00"
updated_at: "2026-11-15T03:34:47+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-129357", "first_seen_at": "2026-11-15T03:33:39+00:00"}]
exploit_sources: []
---

# Magma: host middleware missing authorization check lets remote users bypass access control

Link for people: https://infrastack.ai/live/CVE-2026-129357 (this .md is for agents)

Linux Foundation Magma up to 1.9.0 has a missing authorization flaw in the hostOrgMiddleware function of its host middleware, where the role argument is manipulated. A remote attacker can start the attack over the network, and a public exploit has been disclosed.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Magma version against `1.9.0`; versions up to and including it are listed as affected.
- Review whether the management (NMS) server in `nms/server/host/middleware.ts` is reachable from untrusted networks.

## Timeline

- 2026-11-15T03:33:39+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-129357

## From the sources

A vulnerability was determined in Linux Foundation Magma up to 1.9.0. This issue affects the function hostOrgMiddleware of the file nms/server/host/middleware.ts of the component Host Middleware. This manipulation of the argument role causes missing authorization. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_