CVE-2021-23421 Prototype Pollution
Prototype pollution in merge-change 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
- None listed
What is CVE-2021-23421?
CVE-2021-23421 is a medium-severity vulnerability in merge-change, published on 11 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
All versions of package merge-change are vulnerable to Prototype Pollution via the utils.set function.
Weakness: CWE-1321
Which versions are affected by CVE-2021-23421?
2 open source packages ship an affected version, including merge-change. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
merge-change npm | All versions to 1.8.1 | None |
merge-change npm | All versions to 1.8.1 | None |
Products include Merge-Change Project Merge-Change.
How do I fix CVE-2021-23421?
No fix has been published for CVE-2021-23421 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-23421 being exploited?
There is no known exploitation of CVE-2021-23421 in the wild and no public exploit code.
Sources
Also known as GHSA-f9cv-665r-275h.