Vulnerability Details CVE-2026-32725
SciTokens C++ is a minimal library for creating and using SciTokens from C or C++. Prior to version 1.4.1, scitokens-cpp is vulnerable to an authorization bypass when processing path-based scopes in tokens. The library normalizes the scope path from the token before authorization and collapses ".." path components instead of rejecting them. As a result, an attacker can use parent-directory traversal in the scope claim to broaden the effective authorization beyond the intended directory. This issue has been patched in version 1.4.1.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 45.9%
CVSS Severity
CVSS v3 Score 8.3
References
Products affected by CVE-2026-32725
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cpe:2.3:a:scitokens:scitokens_cpp_library:*