CVE-2026-121945

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.

References

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