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CVE-2026-32727— SciTokens: Authorization Bypass via Path Traversal in Scope Validation

Quick assessment

Affected
scitokens scitokens
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

scitokens是SciTokens开源的一个基于JWT的科学计算令牌库。 SciTokens 1.9.7之前版本存在路径遍历漏洞，该漏洞源于攻击者可在令牌的范围声明中使用点-点(..)来逃避预期的目录限制，可能导致路径遍历攻击。

CVSS 8.1 · High EPSS 0.53% · P43
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I. Basic Information for CVE-2026-32727

Vulnerability Information
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Vulnerability Title
SciTokens: Authorization Bypass via Path Traversal in Scope Validation
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
scitokens 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
scitokens是SciTokens开源的一个基于JWT的科学计算令牌库。 SciTokens 1.9.7之前版本存在路径遍历漏洞，该漏洞源于攻击者可在令牌的范围声明中使用点-点(..)来逃避预期的目录限制，可能导致路径遍历攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
scitokens scitokens < 1.9.7 -

II. Public POCs for CVE-2026-32727

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 12588 chars
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III. Intelligence Information for CVE-2026-32727

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Patches & Fixes for CVE-2026-32727 (2)

Vendor Advisories for CVE-2026-32727 (1)

Same Patch Batch · scitokens · 2026-03-31 · 5 CVEs total

CVE-2026-32714 9.8 CRITICAL SciTokens vulnerable to SQL Injection in KeyCache
CVE-2026-32725 8.3 HIGH SciTokens C++: Relative Path Traversal Vulnerability
CVE-2026-32726 8.1 HIGH SciTokens C++: Sibling-Path Authorization Bypass
CVE-2026-32716 8.1 HIGH SciTokens: Authorization Bypass via Incorrect Scope Path Prefix Checking

IV. Related Vulnerabilities

Same product: scitokens
Same vendor: scitokens
Same weakness: CWE-22

V. Comments for CVE-2026-32727

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