---
id: "CVE-2026-111253"
kind: "vulnerability"
aliases: ["CVE-2026-111253"]
title: "dnf5daemon-server: local users can swap a session's package transaction plan"
severity: "medium"
cvss: 6.6
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["dbus", "dnf5", "fedora", "infrastructure", "linux", "rhel"]
not_affected_if: ["daemon-not-installed", "no-local-untrusted-users"]
published_at: "2026-11-05T17:17:37+00:00"
first_seen_at: "2026-11-05T17:40:03+00:00"
updated_at: "2026-11-05T17:42:31+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-111253", "first_seen_at": "2026-11-05T17:40:03+00:00"}]
exploit_sources: []
---

# dnf5daemon-server: local users can swap a session's package transaction plan

dnf5daemon-server does not check that the caller of a D-Bus session method is the user who created the session. A local attacker can replace another user's resolved package transaction, and if that user later authorizes it, the root daemon may install or remove attacker-chosen packages.

_Summary, check and fix written by a model from the sources; labelled as such._

## Timeline

- 2026-11-05T17:40:03+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-111253

## Documents

- [fix] Patch: github.com https://github.com/rpm-software-management/dnf5/commit/46a4a8ad8d34af91ec2add6bb29e487571ea6c85

## From the sources

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.

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