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Vulnerability record · CVE-2026-32725 · published 31 March 2026

CVE-2026-32725: Scitokens cpp library relative path traversal vulnerability

Scitokens · Scitokens Cpp Library

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.

8.3 CVSS 3.1 High EPSS 0.99% · top 38.9% CWE-23 · Relative path traversal
8.3CVSS 3.1 base score
0.99%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 1 tagged exploit
24 Jul 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/scitokens/scitokens-cpp/commit/7951ed809967d88c00c20de414b1ff74df8c3e08 Patch
https://github.com/scitokens/scitokens-cpp/security/advisories/GHSA-rqcx-mc9w-pjxp ExploitVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-32725), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.