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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact High

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00406.

Exploitation poc

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
CoopCycle coopcycle-web unaffected
Version Status Constraints
0 affected < 6.20.1

No data.

No data.

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No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/coopcycle/coopcycle-web/blob/v6.19.1/src/Entity/Incident/Incident.php#L43-L71 cve-icon cve-icon
https://github.com/coopcycle/coopcycle-web/commit/d997393d128afa1febe34e8f295b9511c12d19a0 cve-icon cve-icon
https://github.com/coopcycle/coopcycle-web/issues/5390 cve-icon cve-icon
https://hackmd.io/@hieund/coopcycle-incident-courier-cross-tenant-bola cve-icon cve-icon
https://hackmd.io/@hieund/cve-2026-121945-coopcycle-incident-courier-cross-tenant-bola cve-icon cve-icon
https://www.vulncheck.com/advisories/coopcycle-coopcycle-web-before-6.20.1-idor-via-incident-resource-and-action-endpoint cve-icon cve-icon
History

Wed, 04 Nov 2026 19:30:00 +0000

Type Values Removed Values Added
References
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 04 Nov 2026 12:45:00 +0000

Type Values Removed Values Added
Description 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.
Title CoopCycle coopcycle-web before 6.20.1 IDOR via Incident Resource and Action Endpoint
Weaknesses CWE-639
References
Metrics cvssV3_1

{'score': 7.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L'}

cvssV4_0

{'score': 7.2, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-04T18:44:49.046Z

Reserved: 2026-11-04T12:05:51.650Z

Link: CVE-2026-121945

cve-icon Vulnrichment

Updated: 2026-11-04T18:44:40.393Z

cve-icon NVD

Status : Received

Published: 2026-11-04T13:17:29.313

Modified: 2026-11-04T19:17:34.983

Link: CVE-2026-121945

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-04T14:00:09Z

Weaknesses