How broadly exploitable is this vulnerability?

Exploitability depends on how heavily a deployment relies on path-based scopes for isolation. In systems where differently privileged resources share similar path prefixes, the issue can significantly broaden access for anyone holding a scoped token.

What level of access does an attacker need to exploit this?

An attacker must obtain or possess a valid SciToken that is legitimately scoped to some path. They then target resources whose paths share a common prefix with that scope but should not actually be covered by it.

What is the safest general fix pattern?

The safest pattern is to replace string-prefix checks with canonical, segment-aware path comparisons that validate the requested resource is within the exact subtree described by the token scope. This should be implemented in a reusable authorization helper to ensure consistency.

Severity:

HIGH RISK

(8.1)

Authorization Bypass via Improper Path Scope Validation (CWE-863) in SciTokens C++

CVE-2026-32726

Published:

Mar 31, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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Vulnerability Type

Category:

Authorization Bypass

CWE:

CWE-863

Impact:

Privilege/Access Escalation through Overly Broad Authorization

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.1

Vulnerability Type

Category:

Authorization Bypass

CWE:

CWE-863

Impact:

Privilege/Access Escalation through Overly Broad Authorization

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.1

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Authorization Bypass via Improper Path Scope Validation (CWE-863) in SciTokens C++

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(8.8)

PHP Code Injection via File Upload (CWE-94) in Aero CMS Admin Post Creation

HIGH RISK

HIGH

(8.8)

Code Injection (CWE-94) via Module Parameters in Evolution CMS

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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