---
id: CVE-2026-121945
title: >-
  CoopCycle coopcycle-web before 6.20.1 IDOR via Incident Resource and Action
  Endpoint
summary: >-
  CoopCycle coopcycle-web before 6.20.1 contains a broken access control
  vulnerability that allows any courier to read and modify every incident
  because Incident operations only check ROLE_COURIER. Attackers can enumerate
  sequential incide…
severity: high
cvss: 7.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L'
cvssSource: cna
cwe:
  - CWE-639
vendor: CoopCycle
product: coopcycle-web
affected:
  - coopcycle-web < 6.20.1
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-04T18:44:21.765480Z'
exploitAvailable: true
published: '2026-11-04'
updated: '2026-11-04'
sourceUpdated: '2026-11-04T18:44:49.046Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-121945'
references:
  - url: 'https://github.com/coopcycle/coopcycle-web/issues/5390'
  - url: 'https://hackmd.io/@hieund/coopcycle-incident-courier-cross-tenant-bola'
  - url: >-
      https://github.com/coopcycle/coopcycle-web/commit/d997393d128afa1febe34e8f295b9511c12d19a0
  - url: >-
      https://github.com/coopcycle/coopcycle-web/blob/v6.19.1/src/Entity/Incident/Incident.php#L43-L71
  - url: >-
      https://www.vulncheck.com/advisories/coopcycle-coopcycle-web-before-6.20.1-idor-via-incident-resource-and-action-endpoint
    label: >-
      VulnCheck Advisory: CoopCycle coopcycle-web before 6.20.1 IDOR via
      Incident Resource and Action Endpoint
tags:
  - cve.org
  - exploit-available
ingestedAt: '2026-11-05T21:36:00.495Z'
---

## Overview

CoopCycle coopcycle-web before 6.20.1 contains a broken access control vulnerability that allows any courier to read and modify every incident because Incident operations only check ROLE_COURIER. Attackers can enumerate sequential incident ids and use PUT /api/incidents/{id}/action to re-price, cancel or reschedule other stores' orders and tasks.

## Affected

- `coopcycle-web < 6.20.1`

## Remediation

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