GHSA-v4gp-hf5j-4566 CVE-2025-67796 PYSEC-2026-3048
IKUS Rdiffweb allows an attacker with any valid or stolen access token to act as other users
- Severity
- 8.1 / 10
- High · CVSS 3.1
- Exploit chance (EPSS)
- 0.24%
- Chance of exploitation in the next 30 days. Higher than 15.74% of scored vulnerabilities.
- Known exploited
- No
- Not in CISA's catalog
- Weakness
- CWE-284 Improper Access Control
- Fix
2.10.6- Upgrade rdiffweb to this version or later
Description
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 versions
PyPI
| Package | Vulnerable | Fixed in |
|---|---|---|
| rdiffweb | < 2.10.6 |
2.10.6 |
How to fix
Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.
rdiffweb PyPI → 2.10.6
- pip
pip install --upgrade "rdiffweb>=2.10.6"- poetry
poetry add "rdiffweb>=2.10.6"- uv
uv add "rdiffweb>=2.10.6"
Severity breakdown
CVSS 3.1 8.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Weakness
CWE-284: Improper Access Control
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
How to prevent it
- Architecture and Design, Operation: Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
- Architecture and Design: Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area. Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
References
Advisories
Packages
Other links
Timeline
- Published
- Last updated by the source
- Latest EPSS score
Related advisories
| Advisory | Severity | Why it's related |
|---|---|---|
| GHSA-c4rv-2j6x-pq7x Rdiffweb Allocation of Resources Without Limits or Throttling vulnerability | High | Also affects rdiffweb |
| GHSA-wwrg-2w5j-grvx RDiffWeb vulnerable to Allocation of Resources Without Limits or Throttling | Medium | Also affects rdiffweb |
| GHSA-wf33-6x33-wcf9 rdiffweb vulnerable to Authentication Bypass by Primary Weakness | High | Also affects rdiffweb |
| GHSA-m8r9-qxx8-mrxp rdiffweb Improper Access Control vulnerability | Critical | Also affects rdiffweb |
| GHSA-h5wp-jrqc-cwwx rdiffweb vulnerable to Open Redirect | High | Also affects rdiffweb |
| GHSA-83pm-7v48-5jp4 rdiffweb vulnerable to Special Element Injection | Medium | Also affects rdiffweb |
| GHSA-7q4r-x5qg-mmcp rdiffweb has no rate limit on resend email feature | Medium | Also affects rdiffweb |
| GHSA-2wpw-cm9w-v4xm rdiffweb vulnerable to Business Logic Errors | Medium | Also affects rdiffweb |
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