---
id: CVE-2025-67796
aliases:
  - GHSA-v4gp-hf5j-4566
  - PYSEC-2026-3048
title: >-
  IKUS Rdiffweb allows an attacker with any valid or stolen access token to act
  as other users
summary: >-
  IKUS Rdiffweb allows an attacker with any valid or stolen access token to act
  as other users
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'
vendor: rdiffweb
product: rdiffweb
ecosystem: pip
affected:
  - rdiffweb < 2.10.6
patched:
  - rdiffweb 2.10.6
published: '2026-05-04'
updated: '2026-07-13'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-v4gp-hf5j-4566'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2025-67796'
  - url: 'https://gitlab.com/ikus-soft/rdiffweb'
  - url: 'https://gitlab.com/ikus-soft/rdiffweb#2106-2025-10-02'
tags:
  - osv
  - pip
epss: 0.00245
epssPercentile: 0.15981
ingestedAt: '2026-07-13T18:58:03.166Z'
---

## Overview

IKUS Rdiffweb version 2.10.5 and below have an improper authorization flaw that allows an attacker with any valid or stolen access token to act as other users. The API does not enforce binding between the authenticated subject and the targeted user/tenant, so crafted requests can read or modify other users data and, in some cases, perform privileged actions. This issue may enable cross-tenant access. Fixed in version 2.10.6.

## Affected packages

- `rdiffweb < 2.10.6`

## Remediation

Upgrade to a patched release:

- `rdiffweb 2.10.6`