Bug 2453283 (CVE-2026-32716)

Summary: CVE-2026-32716 scitokens: SciTokens: Authorization Bypass due to incorrect scope path validation
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: high    
Version: unspecifiedKeywords: Security
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OS: Linux   
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A flaw was found in SciTokens. The Enforcer component incorrectly validates scope paths by using a simple prefix match. This allows an attacker with a valid token for a specific path to gain unauthorized access to sibling paths that share the same prefix. This authorization bypass can lead to unintended information disclosure or modification of resources.
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Bug Depends On: 2453292, 2453293    
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Description OSIDB Bzimport 2026-03-31 03:02:24 UTC 
SciTokens is a reference library for generating and using SciTokens. Prior to version 1.9.6, the Enforcer incorrectly validates scope paths by using a simple prefix match (startswith). This allows a token with access to a specific path (e.g., /john) to also access sibling paths that start with the same prefix (e.g., /johnathan, /johnny), which is an Authorization Bypass. This issue has been patched in version 1.9.6.