CVE-2026-32725: Scitokens Cpp Library

High severity, CVSS 8.3. EPSS: 1% chance of exploitation in the next 30 days.

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.

Affected products

• Scitokens Scitokens Cpp Library: before 1.4.1 (fixed in 1.4.1)

Published 2026-03-31. Last modified 2026-07-24.