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CVE-2026-32727PYSEC-2026-2277GHSA-3X2W-63FP-3QVW

SciTokens: Authorization Bypass via Path Traversal in Scope Validation

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 1.9.7
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: poc
  • Automatable: no
  • Technical impact: total

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: poc · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • scitokens scitokens

    fixed in 1.9.7

  • scitokensPyPI

    fixed in 1.9.7

References 4

GitHub · scitokens/scitokens