Is this vulnerability remotely exploitable?

Yes. Any user who can authenticate to the File Browser web interface and send crafted HTTP requests can attempt to exploit this issue remotely, provided network access to the service is available.

Does exploitation require administrator or special privileges?

No administrative privileges are required beyond having a valid user account. The vulnerability specifically allows lower-privileged authenticated users to reach files and directories that should be blocked by "Disallow" rules.

What is the safest general fix pattern for this issue?

The most robust fix is to normalize all user-supplied paths to a canonical form before performing any authorization or policy checks, and to ensure that the same canonical path is used for both security decisions and filesystem operations. Additionally, review and harden path-based policies so they do not rely solely on raw string matching.

Severity:

HIGH RISK

(8.1)

Path Normalization Authorization Bypass (CWE-706, CWE-863) in File Browser Access Controls

CVE-2026-25890

Published:

Feb 9, 2026

Status:

Undergoing Analysis

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-306

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

Account Takeover / Loss of Account Control

February 17, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Remote Code Execution on the Server Host

February 17, 2026

Vulnerability Type

Category:

Authorization Bypass via Path Normalization Error

CWE:

CWE-706;CWE-863

Impact:

Unauthorized File and Directory Access

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.1

Vulnerability Type

Category:

Authorization Bypass via Path Normalization Error

CWE:

CWE-706;CWE-863

Impact:

Unauthorized File and Directory Access

Severity:

HIGH RISK

(8.1)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

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Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Path Normalization Authorization Bypass (CWE-706, CWE-863) in File Browser Access Controls

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

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Vulnerability Type

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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