Description

A race condition vulnerability exists in MedusaJS Medusa v2.12.2 and earlier in the registerUsage() function of the promotion module. The function performs a non-atomic read-check-update operation when enforcing promotion usage limits. This allows unauthenticated remote attackers to bypass usage limits by sending concurrent checkout requests, resulting in unlimited redemptions of limited-use promotional codes and potential financial loss.

INFO

Published Date :

2026-02-11T00:00:00.000Z

Last Modified :

2026-02-12T15:10:00.310Z

Source :

mitre
AFFECTED PRODUCTS

The following products are affected by CVE-2025-69871 vulnerability.

Vendors Products
Medusajs
  • Medusa
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-69871.

URL Resource
https://github.com/EthanKim88/ethan-cve-disclosures/blob/main/CVE-2025-69871-MedusaJS-TOCTOU.md cve-icon cve-icon
https://github.com/medusajs/medusa cve-icon cve-icon
https://github.com/medusajs/medusa/pull/13760 cve-icon cve-icon
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