SciTokens: Authorization Bypass via Path Traversal in Scope Validation

8.1 / 10

HIGH

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

Description

SciTokens is a reference library for generating and using SciTokens. Prior to version 1.9.7, the Enforcer is vulnerable to a path traversal attack where an attacker can use dot-dot (..) in the scope claim of a token to escape the intended directory restriction. This occurs because the library normalizes both the authorized path (from the token) and the requested path (from the application) before comparing them using startswith. This issue has been patched in version 1.9.7.

Basic Information

ID CVE-2026-32727

Source GitHub_M

Published Mar 31, 2026 at 01:31

Modified Apr 2, 2026 at 14:48

Affected Product

Vendor scitokens

Product scitokens

Version < 1.9.7

Affected Versions scitokens scitokens < 1.9.7

CWE Classification

CWE-22

References

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    "published": "2026-03-31T01:31:57.392Z",
    "modified": "2026-04-02T14:48:02.376Z",
    "type": "cve",
    "title": "SciTokens: Authorization Bypass via Path Traversal in Scope Validation",
    "source": "GitHub_M",
    "references": "https://github.com/scitokens/scitokens/security/advisories/GHSA-3x2w-63fp-3qvw\nhttps://github.com/scitokens/scitokens/pull/230\nhttps://github.com/scitokens/scitokens/commit/2d1cc9e42bc944fe0bbc429b85d166e7156d53f9\nhttps://github.com/scitokens/scitokens/releases/tag/v1.9.7",
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SciTokens: Authorization Bypass via Path Traversal in Scope Validation_CVE-2026-32727