CVE-2021-23329 Prototype Pollution
Prototype pollution in nested-object-assign allows attackers to modify object prototypes, potentially leading to code execution or privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-23329?
CVE-2021-23329 is a high-severity vulnerability in nested-object-assign, published on 31 Jan 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The package nested-object-assign before 1.0.4 are vulnerable to Prototype Pollution via the default function, as demonstrated by running the PoC below.
Weakness: CWE-1321
Which versions are affected by CVE-2021-23329?
2 open source packages ship an affected version, including nested-object-assign. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
nested-object-assign npm | All versions | 1.0.4 |
nested-object-assign npm | All versions | 1.0.4 |
Products include Getadigital Nested-Object-Assign.
How do I fix CVE-2021-23329?
Upgrade nested-object-assign to 1.0.4 or later.
Is CVE-2021-23329 being exploited?
There is no known exploitation of CVE-2021-23329 in the wild and no public exploit code.
Sources
Also known as GHSA-c497-v8pv-ch6x, ROOT-APP-NPM-CVE-2021-23329, SNYK-JS-NESTEDOBJECTASSIGN-1065977.