CVE-2026-109119

HIGH 8.8

Missing Authorization in rdiffweb

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

Improper Privilege Management in the user management API endpoint (/api/users/{username_or_id}) in Rdiffweb allows authenticated users to elevate their privileges to administrator by modifying the role parameter in a POST request.

CWE	CWE-862
Vendor	ikus-soft
Product	rdiffweb
Published	Oct 16, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

ikus-soft / rdiffweb

0 < 2.10.6

References

NVD ↗ CVE.org ↗ EPSS Data ↗

gitlab.com: https://gitlab.com/ikus-soft/rdiffweb gitlab.com: https://gitlab.com/ikus-soft/rdiffweb/-/commit/b529adf2c13a210d10aaf56325de4d3fb2428abe gitlab.com: https://gitlab.com/ikus-soft/rdiffweb/-/commit/4ce35fc2d23ac1cc789186f32bf76603b2eddeb3

Credits

sagar banwa <[email protected]>