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High 8.3Published Mar 31, 2026

CVE-2026-32725SciTokens C++: Relative Path Traversal Vulnerability

Updated under an hour ago ()

Does this affect you?

It affects scitokens-cpp and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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
8.3 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Weakness (CWE)
CWE-23
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
GitHub_M
NVD analysis
Analyzed
Record last updated
Apr 3, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
scitokens scitokens-cpp
scitokens:cpp (from the name)
before 1.4.1
CNA record
scitokens scitokens_cpp_library
scitokens:scitokens_cpp_library
before 1.4.1
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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