CVE-2021-23434
Prototype Pollution in object-path
5.6
MEDIUM
CVSS 3.1
EPSS 0.39%
Description
This affects the package object-path before 0.11.6. A type confusion vulnerability can lead to a bypass of CVE-2020-15256 when the path components used in the path parameter are arrays. In particular, the condition currentPath === '__proto__' returns false if currentPath is ['__proto__']. This is because the === operator returns always false when the type of the operands is different.
How to fix CVE-2021-23434
To remediate CVE-2021-23434, upgrade the affected package to a fixed version below.
- —upgrade to 0.11.5-3+deb11u1 or later
- —upgrade to 0.11.4-2+deb10u2 or later
- —upgrade to 0.11.6 or later
Is CVE-2021-23434 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 0.11.5-3+deb11u1
- from 0, < 0.11.4-2+deb10u2
- from 0, < 0.11.6
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.6 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L |