medium5.1
CVE-2021-27884
Weak JSON Web Token in yapi-vendor
Impact
Weak JSON Web Token (JWT) signing secret generation in YMFE YApi through 1.9.2 allows recreation of other users' JWT tokens. This occurs because Math.random in Node.js is used as a source of randomness in jwt signing. Math.random does not provide cryptographically secure random numbers. This has been patched in version 1.9.3.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | yapi-vendor | <= 1.9.2 | 1.9.3 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Ymfe | Yapi | through 1.9.2 |