CWE-302: Authentication Bypass by Assumed-Immutable Data
The authentication scheme or implementation uses key data elements that are assumed to be immutable, but can be controlled or modified by the attacker.
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Overview
CWE-302 (Authentication Bypass by Assumed-Immutable Data) is a base-level software weakness catalogued by MITRE in the Common Weakness Enumeration (CWE). It describes a recurring type of mistake that can lead to exploitable security vulnerabilities.
Real-world CVEs
36 recorded CVEs are caused by CWE-302 (Authentication Bypass by Assumed-Immutable Data). The highest-severity and most recent are shown first. 8 new CWE-302 CVEs have been recorded so far in 2026 (8 in 2025).