CVE-2026-32726

SciTokens C++: Sibling-Path Authorization Bypass

State
Published
Severity
8.1 High
Published
Mar 31, 2026
Updated
Mar 31, 2026
Reserved
Mar 13, 2026

Read the record on cve.org

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 in path-based scope validation. The enforcer used a simple string-prefix comparison when checking whether a requested resource path was covered by a token's authorized scope path. Because the check did not require a path-segment boundary, a token scoped to one path could incorrectly authorize access to sibling paths that merely started with the same prefix. This issue has been patched in version 1.4.1.

Scores

CVSSScoreVectorSource
3.18.1 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:NGitHub_M

Weaknesses

Affected Products

ProductVersions
scitokens-cppscitokens
  • < 1.4.1Affected

References

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