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CVE-2025-69871
Published: Feb 11, 2026
Modified: Feb 12, 2026
PUBLISHED
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.
| Vendor | Product | Versions |
|---|---|---|
n/a | n/a | affected n/a |
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