---
id: CVE-2026-111684
title: Magistrala through 1.0.0 Cross-Tenant Authorization Bypass in Certs Service
summary: >-
  Magistrala through 1.0.0 contains an authorization bypass vulnerability that
  allows authenticated workspace members to view, issue, and revoke other
  tenants' device certificates by supplying foreign serials or entity ids.
  Attackers can c…
severity: high
cvss: 8.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-639
vendor: absmach
product: magistrala
affected:
  - magistrala <= 1.0.0
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T17:39:41.598Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-111684'
references:
  - url: >-
      https://hackmd.io/@hieuPenguinnn/magistrala-certs-missing-workspace-scope-cross-tenant
  - url: >-
      https://github.com/absmach/magistrala/blob/v1.0.0/certs/service.go#L136-L180
  - url: >-
      https://github.com/absmach/magistrala/blob/v1.0.0/certs/middleware/authorization.go#L97-L110
  - url: 'https://github.com/absmach/magistrala'
  - url: >-
      https://www.vulncheck.com/advisories/magistrala-through-1.0.0-cross-tenant-authorization-bypass-in-certs-service
    label: >-
      VulnCheck Advisory: Magistrala through 1.0.0 Cross-Tenant Authorization
      Bypass in Certs Service
tags:
  - cve.org
ingestedAt: '2026-10-16T18:43:08.660Z'
---

## Overview

Magistrala through 1.0.0 contains an authorization bypass vulnerability that allows authenticated workspace members to view, issue, and revoke other tenants' device certificates by supplying foreign serials or entity ids. Attackers can call RevokeBySerial, RevokeAll, ViewCert, ListCerts, or IssueCert under their own workspace path to disconnect other tenants' devices, disclose certificates, and mint CA-signed certificates for their device ids.

## Affected

- `magistrala <= 1.0.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.