---
id: CVE-2026-73509
title: OpenList a file list program that supports multiple storage
summary: >-
  OpenList a file list program that supports multiple storage. Prior to 4.2.4,
  the authenticated /api/fs/batch_rename handler in server/handles/fsbatch.go
  authorizes only the source directory produced by user.JoinPath(req.SrcDir) and
  valid…
severity: high
cvss: 7.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L'
cwe:
  - CWE-22
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: '2026-08-13'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T20:09:01.757'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-73509'
references:
  - url: >-
      https://github.com/OpenListTeam/OpenList/commit/651da18da4c647d96648d4bb64462baac1c37e04
    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-95cv-r8x4-vh75
    label: security-advisories@github.com
  - url: >-
      https://github.com/OpenListTeam/OpenList/security/advisories/GHSA-95cv-r8x4-vh75
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://github.com/OpenListTeam/OpenList'
tags:
  - nvd
  - osv
  - go
epss: 0.00522
epssPercentile: 0.41782
aliases:
  - GHSA-95cv-r8x4-vh75
ecosystem: go
ingestedAt: '2026-08-13T19:18:21.140Z'
---

## Overview

OpenList a file list program that supports multiple storage. Prior to 4.2.4, the authenticated /api/fs/batch_rename handler in server/handles/fsbatch.go authorizes only the source directory produced by user.JoinPath(req.SrcDir) and validates renameObject.NewName with checkRelativePath, but does not validate attacker-controlled renameObject.SrcName, supplied as src_name, before concatenating it with the authorized path and passing the result to fs.Rename. A user with rename permission can use traversal segments in src_name to make path normalization select a file outside the authorized directory and configured base path, resulting in cross-user file integrity loss, limited availability impact, and file-existence disclosure through success or error responses. 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-2026-73509)

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-95cv-r8x4-vh75