CVE-2026-32727: Scitokens Library

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

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.

Affected products

• Scitokens Scitokens Library: before 1.9.7 (fixed in 1.9.7)

Published 2026-03-31. Last modified 2026-06-17.