CVE-2021-21304
Prototype Pollution in Dynamoose
Description
### Impact In Dynamoose versions 2.0.0-2.6.0 there was a prototype pollution vulnerability in the internal utility method [`lib/utils/object/set.ts`](https://github.com/dynamoose/dynamoose/blob/master/lib/utils/object/set.ts). This method is used throughout the codebase for various operations throughout Dynamoose. We have not seen any evidence of this vulnerability being exploited. We do not believe this issue impacts v1.x.x since this method was added as part of the v2 rewrite. This vulnerability also impacts v2.x.x beta/alpha versions. ### Patches v2.7.0 includes a patch for this vulnerability. ### Workarounds We are unaware of any workarounds to patch this vulnerability other than upgrading to v2.7.0 or greater. ### References - Patch commit hash: 324c62b4709204955931a187362f8999805b1d8e ### For more information If you have any questions or comments about this advisory: * [Contact me](https://charlie.fish/contact) * [Read our Security Policy](https://github.com/dynamoose/dynamoose/blob/master/SECURITY.md) ### Credit - GitHub CodeQL Code Scanning
How to fix CVE-2021-21304
To remediate CVE-2021-21304, upgrade the affected package to a fixed version below.
- —upgrade to 2.7.0 or later
Is CVE-2021-21304 being exploited?
Low — EPSS is 0.6%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 2.0.0, < 2.7.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.2 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N |