CWE-462

Duplicate Key in Associative List (Alist)

Duplicate keys in associative lists can lead to non-unique keys being mistaken for an error.

CVE-2025-21085 (GCVE-0-2025-21085)

Vulnerability from cvelistv5 – Published: 2025-06-15 14:25 – Updated: 2025-06-16 18:08
VLAI?
Summary
PingFederate OAuth2 grant duplication in PostgreSQL persistent storage allows OAuth2 requests to use excessive memory utilization.
CWE
  • CWE-462 - Duplicate Key in Associative List
Assigner
Impacted products
Vendor Product Version
Ping Identity PingFederate Affected: 12.2.0 , < 12.2.4 (custom)
Affected: 12.1.0 , < 12.1.9 (custom)
Affected: 12.0 , < 12.0.9 (custom)
Affected: 11.3.0 , < 11.3.13 (custom)
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Show details on NVD website

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Mitigation

Phase: Architecture and Design

Description:

  • Use a hash table instead of an alist.
Mitigation

Phase: Architecture and Design

Description:

  • Use an alist which checks the uniqueness of hash keys with each entry before inserting the entry.

No CAPEC attack patterns related to this CWE.

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