CVE-2021-23597
Uncaught Exception in fastify-multipart
Impact
### Impact This is a bypass of CVE-2020-8136 (https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8136). By providing a `name=constructor` property it is still possible to crash the application. The original fix only checks for the key `__proto__` (https://github.com/fastify/fastify-multipart/pull/116). All users are recommended to upgrade ### Patches v5.3.1 includes a patch ### Workarounds No workarounds are possible. ### References Read up https://www.fastify.io/docs/latest/Guides/Prototype-Poisoning/ ### For more information If you have any questions or comments about this advisory: * Open an issue in [https://github.com/fastify/fastify-multipart](https://github.com/fastify/fastify-multipart) * Email us at [hello@matteocollina.com](mailto:hello@matteocollina.com)
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | fastify-multipart | < 5.3.1 | 5.3.1 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Fastify | Fastify-Multipart | before 5.3.1 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/fastify/fastify-multipart/commit/a70dc7059a794589bd4fe066453141fc609e6066
- https://github.com/fastify/fastify-multipart/releases/tag/v5.3.1
- https://snyk.io/vuln/SNYK-JS-FASTIFYMULTIPART-2395480
- https://github.com/advisories/GHSA-qh73-qc3p-rjv2
- https://github.com/fastify/fastify-multipart/security/advisories/GHSA-qh73-qc3p-rjv2
- https://github.com/fastify/fastify-multipart/pull/116
- https://www.fastify.io/docs/latest/Guides/Prototype-Poisoning/
- https://nvd.nist.gov/vuln/detail/CVE-2021-23597