CVE-2021-23438
low-risk
Published 2021-09-01
This affects the package mpath before 0.8.4. A type confusion vulnerability can lead to a bypass of CVE-2018-16490. In particular, the condition ignoreProperties.indexOf(parts[i]) !== -1 returns -1 if parts[i] is ['__proto__']. This is because the method that has been called if the input is an array is Array.prototype.indexOf() and not String.prototype.indexOf(). They behave differently depending on the type of the input.
Do I need to act?
-
0.52% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.6/10
Medium
NETWORK
/ HIGH complexity
Affected Products (1)
Mpath
Affected Vendors
References (6)
25
/ 100
low-risk
Severity
18/34 · Moderate
Exploitability
2/34 · Minimal
Exposure
5/34 · Minimal