CVE-2025-67796 IKUS Rdiffweb allows an attacker with any valid or stolen access token to act as other users
Attackers with valid tokens can access or modify other users' data due to missing authorization checks in the API.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-67796?
CVE-2025-67796 is a high-severity missing authorization vulnerability in n/a, published on 4 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
IKUS Rdiffweb before 2.10.5 has 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.
Weakness: CWE-284
Which versions are affected by CVE-2025-67796?
3 open source packages ship an affected version, including rdiffweb.
| Package | Affected | Fixed in |
|---|---|---|
rdiffweb PyPI | All versions | 2.10.6 |
rdiffweb PyPI | All versions | 2.10.6 |
rdiffweb PyPI | All versions | 2.10.6 |
How do I fix CVE-2025-67796?
Upgrade rdiffweb to 2.10.6 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-67796 being exploited?
There is no known exploitation of CVE-2025-67796 in the wild and no public exploit code.
Sources
Also known as GHSA-v4gp-hf5j-4566, PYSEC-2026-3048.