---
id: CVE-2026-102663
title: OpenList is a file list program that supports multiple storage backends
summary: >-
  OpenList is a file list program that supports multiple storage backends. Prior
  to 4.2.4, the OpenList search API uses a non-separator-aware strings.HasPrefix
  comparison as a path containment authorization check when authorizing globally
  …
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-200
  - CWE-639
vendor: OpenListTeam
product: github.com/OpenListTeam/OpenList/v4
affected:
  - github.com/OpenListTeam/OpenList/v4 < 4.2.4
patched:
  - github.com/OpenListTeam/OpenList/v4 4.2.4
published: '2026-10-12'
updated: '2026-10-13'
sourceUpdated: '2026-10-13T17:17:14.363'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-102663'
references:
  - url: >-
      https://github.com/OpenListTeam/OpenList/commit/59bd3431408578f420895457554700cc9a52375a
    label: security-advisories@github.com
  - url: >-
      https://github.com/OpenListTeam/OpenList/commit/84ecda35aae2bd0020474086e6ddfd3aa2340679
    label: security-advisories@github.com
  - url: 'https://github.com/OpenListTeam/OpenList/releases/tag/v4.2.4'
    label: security-advisories@github.com
  - url: >-
      https://github.com/OpenListTeam/OpenList/security/advisories/GHSA-p6ph-3jx2-3337
    label: security-advisories@github.com
  - url: >-
      https://github.com/OpenListTeam/OpenList/security/advisories/GHSA-p6ph-3jx2-3337
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://github.com/OpenListTeam/OpenList'
tags:
  - nvd
  - osv
  - go
  - cve.org
  - exploit-available
epss: 0.0026
epssPercentile: 0.1757
aliases:
  - GHSA-p6ph-3jx2-3337
  - GO-2026-6113
ecosystem: go
ingestedAt: '2026-10-12T20:03:12.348Z'
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-13T16:00:59.279006Z'
---

## Overview

OpenList is a file list program that supports multiple storage backends. Prior to 4.2.4, the OpenList search API uses a non-separator-aware strings.HasPrefix comparison as a path containment authorization check when authorizing globally indexed Bleve results against a restricted user's BasePath. When Bleve search is enabled and a restricted authenticated user searches the global index for content in a sibling path, the user causes a globally indexed sibling-path result to pass the prefix check. The strings.HasPrefix(node.Parent, user.BasePath) predicate allows a sibling path such as /base2 to be treated as contained by /base. Unauthorized file metadata or file-existence information can be disclosed, and the backend Total value can reveal a match even when another access check removes the individual result. This issue is fixed in version 4.2.4.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Package advisory (CVE-2026-102663)

Affected packages:

- `github.com/OpenListTeam/OpenList/v4 < 4.2.4`

Patched in:

- `github.com/OpenListTeam/OpenList/v4 4.2.4`

Source: https://osv.dev/vulnerability/GHSA-p6ph-3jx2-3337