What is CVE-2026-109119?

CVE-2026-109119 is a high-severity vulnerability in Ikus-Soft Rdiffweb, classified under Missing Authorization. CVSS score: 8.8/10. Published 2026-10-16.

How severe is CVE-2026-109119?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in Ikus-Soft Rdiffweb

CVE-2026-109119

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.

Vulnerability class: Broken Access Control

Published 2026-10-16 · last modified 2026-10-16.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Ikus-Soft Rdiffweb

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

Frequently asked questions

What is CVE-2026-109119?: CVE-2026-109119 is a high-severity vulnerability in Ikus-Soft Rdiffweb, classified under Missing Authorization. CVSS score: 8.8/10. Published 2026-10-16.
How severe is CVE-2026-109119?: High severity. CVSS v3 base score is 8.8 out of 10.