Vulnerability · Published Feb 11, 2026 · Assigned by mitre
CVE-2025-69871
High 8.1
In plain English
A high-severity race condition in the medusa package (Ubuntu). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities).
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | medusa | no fix listed | UBUNTU-CVE-2025-69871 |
| Ubuntu:24.04:LTS | medusa | no fix listed | UBUNTU-CVE-2025-69871 |
| Ubuntu:25.10 | medusa | no fix listed | UBUNTU-CVE-2025-69871 |
| Ubuntu:26.04:LTS | medusa | no fix listed | UBUNTU-CVE-2025-69871 |
| Ubuntu:26.10 | medusa | no fix listed | UBUNTU-CVE-2025-69871 |
Affected products (as reported)
Weakness: CWE-362 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H