Variant weakness
Incomplete
CWE-462: Duplicate Key in Associative List (Alist)
Duplicate keys in associative lists can lead to non-unique keys being mistaken for an error.
1
Recorded CVEs
With this primary weakness
0
KEVs
In the CISA KEV catalog
Low
Likelihood of exploit
Per MITRE
Variant
Abstraction
MITRE classification
Overview
A duplicate key entry -- if the alist is designed properly -- could be used as a constant time replace function. However, duplicate key entries could be inserted by mistake. Because of this ambiguity, duplicate key entries in an association list are not recommended and should not be allowed.