CVE-2026-111253
Dnf5daemon-server: dnf5: dnf5daemon-server: missing session-owner check allows foreign d-bus callers to replace another client's resolved transaction
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
6.6
Dnf5daemon-server: dnf5: dnf5daemon-server: missing session-owner check allows foreign d-bus callers to replace another client's resolved transaction
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.
- Record
CVE-2026-111253- CVSS 3.1
- 6.6 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H - Weakness
- CWE-862
- Updated
- 2026-11-05
EUVDEUVD-2026-117580
6.6
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.
- Record
EUVD-2026-117580- CVSS 3.1
- 6.6 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H - Updated
- 2026-11-05
GitHub AdvisoriesGHSA-pv76-vr6r-5vv5
6.6
A flaw was found in dnf5daemon-server. Session methods on dynamically exported D-Bus session...
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.
- Record
GHSA-pv76-vr6r-5vv5- CVSS 3.1
- 6.6 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H - Weakness
- CWE-862
- Updated
- 2026-11-05
NVD
6.6
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.
- Record
CVE-2026-111253- CVSS 3.1
- 6.6 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H - Weakness
- CWE-862
- Updated
- 2026-11-05
OSV
6.6
Dnf5daemon-server: dnf5: dnf5daemon-server: missing session-owner check allows foreign d-bus callers to replace another client's resolved transaction
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.
- Record
CVE-2026-111253- CVSS 3.1
- 6.6 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H - Weakness
- CWE-862
- Updated
- 2026-11-07
OSVDEBIAN-CVE-2026-111253
6.6
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.
- Record
DEBIAN-CVE-2026-111253- CVSS 3.1
- 6.6 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H - Updated
- 2026-11-06
OSVUBUNTU-CVE-2026-111253
6.6
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.
- Record
UBUNTU-CVE-2026-111253- CVSS 3.1
- 6.6 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H - Updated
- 2026-11-07
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
dnf5Debian:14 |
All versions, plus listed versions 5.3.0.0-15.3.0.0-25.4.0.0-15.4.2.0-15.4.2.1-1 Show 5 moreShow less5.4.3.0-15.4.4.0-15.4.5.0-15.4.6.0-15.4.6.0-2 |
None known |
dnfUbuntu:22.04:LTS |
All versions, plus listed versions 4.5.2-6 |
None known |
dnfUbuntu:24.04:LTS |
All versions, plus listed versions 4.14.0-44.14.0-4.14.14.0-4.1ubuntu1 |
None known |
dnfUbuntu:26.10 |
All versions, plus listed versions 4.24.0-1build1 |
None known |
dnf5Ubuntu:26.10 |
All versions, plus listed versions 5.4.0.0-15.4.3.0-1 |
None known |
dnfUbuntu:26.04:LTS |
All versions, plus listed versions 4.23.0-14.24.0-14.24.0-1build1 |
None known |
dnf5Ubuntu:26.04:LTS |
All versions, plus listed versions 5.4.0.0-1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, aliases, references | OSV | |
| affected, aliases, references | OSV | |
| references | EUVD, NVD, OSV | |
| aliases, references | GitHub Advisories | |
| aliases, published | EUVD | |
| first indexed | CVE List |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-111253 is a medium vulnerability (CVSS 6.6) in Red Hat Hardened Images, published November 5, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.13%, the 2nd percentile. No source names a fixed version.
References
access.redhat.com/security/cve/CVE-2026-111253
bugzilla.redhat.com/show_bug.cgi?id=2553683
github.com/rpm-software-management/dnf5/commit/46a4a8ad8d34af91ec2add6bb29e487571ea6c85
nvd.nist.gov/vuln/detail/CVE-2026-111253
github.com/advisories/GHSA-pv76-vr6r-5vv5
access.redhat.com/downloads/content/package-browser