scitokens scitokens-cpp up to 1.4.0 path traversal

Summaryinfo

A vulnerability, which was classified as critical, has been found in scitokens scitokens-cpp up to 1.4.0. This vulnerability affects unknown code. The manipulation leads to path traversal. This vulnerability is uniquely identified as CVE-2026-32725. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in scitokens scitokens-cpp up to 1.4.0. This issue affects an unknown functionality. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-23. The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-32725 since 03/13/2026. The exploitation is known to be easy. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

Upgrading to version 1.4.1 eliminates this vulnerability.

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Productinfo

Vendor

• scitokens

Name

• scitokens-cpp

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4.0

Website

• Product: https://github.com/scitokens/scitokens-cpp/

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