Incorrect Authorization Affecting anchor-lang package, versions >=1.0.0-rc.1 <1.0.0-rc.2
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- published19 May 2026
- disclosed8 May 2026
- creditacheroncrypto
Introduced: 8 May 2026
New CVE NOT AVAILABLE CWE-863 (opens in a new tab)Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade anchor-lang to version 1.0.0-rc.2 or higher.
Overview
Affected versions of this package are vulnerable to Incorrect Authorization via the InterfaceAccount process. An attacker can gain unauthorized access or manipulate state by providing an account with a valid owner but an unexpected type, exploiting the lack of discriminator validation during deserialization.