Auth bypass in Red Hat Hardened Images

CVE-2026-111253

A flaw was found in dnf5daemon-server. Session methods on dynamically exported D-Bus session objects do not verify that the caller is the unique sender that created the session. A local attacker can modify another user's live package-management session and replace its resolved transaction plan. If the legitimate session party later authorizes execution, the root daemon may apply the attacker-chosen package operations.

Vulnerability class: Broken Access Control

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/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

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-111253?
CVE-2026-111253 is a medium-severity vulnerability in Red Hat Hardened Images, classified under Missing Authorization. CVSS score: 6.6/10. Published 2026-11-05.
How severe is CVE-2026-111253?
Medium severity. CVSS v3 base score is 6.6 out of 10.