---
id: CVE-2026-109118
title: >-
  Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  in rdiffweb
summary: >-
  Improper path containment check in ikus060 rdiffweb 7.1.1 allows an
  authenticated user to cause the browse, restore, history and delete operations
  to resolve to a path outside the repository being operated on, via a
  percent-encoded trave…
severity: medium
cvss: 4.6
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L'
cvssSource: cna
cwe:
  - CWE-22
vendor: ikus-soft
product: rdiffweb
affected:
  - rdiffweb < 7.1.1
published: '2026-10-16'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T10:27:18.156Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-109118'
references:
  - url: 'https://gitlab.com/ikus-soft/rdiffweb'
  - url: 'https://gitlab.com/ikus-soft/rdiffweb/-/work_items/392'
  - url: 'https://gitlab.com/ikus-soft/rdiffweb/-/work_items/393'
  - url: 'https://gitlab.com/ikus-soft/rdiffweb/-/work_items/394'
  - url: >-
      https://gitlab.com/ikus-soft/rdiffweb/-/commit/04b7096566811feb7d782e38560b44044fa91a29
tags:
  - cve.org
ingestedAt: '2026-10-16T11:04:58.139Z'
---

## Overview

Improper path containment check in ikus060 rdiffweb 7.1.1 allows an authenticated user to cause the browse, restore, history and delete operations to resolve to a path outside the repository being operated on, via a percent-encoded traversal sequence (%2e%2e) in the request path, because the containment check uses a string prefix comparison (startswith) instead of a filesystem path boundary check. The target must be a sibling path whose name begins with the repository path, and the user already hold permissions on it; the issue can mislead a user into operating on, or deleting, data other than the repository displayed

## Affected

- `rdiffweb < 7.1.1`

## Remediation

Upgrade to 7.2.0