HIGH8.1

PYSEC-2026-3048

IKUS Rdiffweb allows an attacker with any valid or stolen access token to act as other users

Quick fix

PYSEC-2026-3048 — rdiffweb: upgrade to the fixed version with the command below.

pip install --upgrade 'rdiffweb>=2.10.6'

Details

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.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/rdiffweb

Introduced in: 0Fixed in: 2.10.6

Fixpip install --upgrade 'rdiffweb>=2.10.6'

References

https://nvd.nist.gov/vuln/detail/CVE-2025-67796[ADVISORY]
https://gitlab.com/ikus-soft/rdiffweb[PACKAGE]
https://gitlab.com/ikus-soft/rdiffweb#2106-2025-10-02[WEB]
https://pypi.org/project/rdiffweb[PACKAGE]
https://github.com/advisories/GHSA-v4gp-hf5j-4566[ADVISORY]