CVE-2026-113496
Cockpit-machines: cockpit-appstream: vnc console password disclosure through virt-xml command-line arguments
A flaw was found in cockpit-machines. When saving Virtual Network Computing (VNC) console settings, the configured password is passed directly as a command-line argument to an underlying system utility. A local unprivileged attacker on a host that allows cross-user process inspection could read the exposed password from the process list while another user modifies settings. This credential disclosure can allow unauthorized access to the guest virtual machine's graphical console.
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
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
5.0
Cockpit-machines: cockpit-appstream: vnc console password disclosure through virt-xml command-line arguments
A flaw was found in cockpit-machines. When saving Virtual Network Computing (VNC) console settings, the configured password is passed directly as a command-line argument to an underlying system utility. A local unprivileged attacker on a host that allows cross-user process inspection could read the exposed password from the process list while another user modifies settings. This credential disclosure can allow unauthorized access to the guest virtual machine's graphical console.
- Record
CVE-2026-113496- CVSS 3.1
- 5.0 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-214
- Updated
- 2026-11-05
EUVDEUVD-2026-104960
5.0
A flaw was found in cockpit-machines. When saving Virtual Network Computing (VNC) console settings, the configured password is passed directly as a command-line argument to an underlying system utility. A local unprivileged attacker on a host that allows cross-user process inspection could read the exposed password from the process list while another user modifies settings. This credential disclosure can allow unauthorized access to the guest virtual machine's graphical console.
- Record
EUVD-2026-104960- CVSS 3.1
- 5.0 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N - Updated
- 2026-11-05
GitHub AdvisoriesGHSA-vxhg-j5jv-qgqm
5.0
A flaw was found in cockpit-machines. When saving Virtual Network Computing (VNC) console...
A flaw was found in cockpit-machines. When saving Virtual Network Computing (VNC) console settings, the configured password is passed directly as a command-line argument to an underlying system utility. A local unprivileged attacker on a host that allows cross-user process inspection could read the exposed password from the process list while another user modifies settings. This credential disclosure can allow unauthorized access to the guest virtual machine's graphical console.
- Record
GHSA-vxhg-j5jv-qgqm- CVSS 3.1
- 5.0 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-214
- Updated
- 2026-11-02
NVD
5.0
A flaw was found in cockpit-machines. When saving Virtual Network Computing (VNC) console settings, the configured password is passed directly as a command-line argument to an underlying system utility. A local unprivileged attacker on a host that allows cross-user process inspection could read the exposed password from the process list while another user modifies settings. This credential disclosure can allow unauthorized access to the guest virtual machine's graphical console.
- Record
CVE-2026-113496- CVSS 3.1
- 5.0 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N - Weakness
- CWE-214
- Updated
- 2026-11-05
OSVDEBIAN-CVE-2026-113496
5.0
A flaw was found in cockpit-machines. When saving Virtual Network Computing (VNC) console settings, the configured password is passed directly as a command-line argument to an underlying system utility. A local unprivileged attacker on a host that allows cross-user process inspection could read the exposed password from the process list while another user modifies settings. This credential disclosure can allow unauthorized access to the guest virtual machine's graphical console.
- Record
DEBIAN-CVE-2026-113496- CVSS 3.1
- 5.0 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N - Updated
- 2026-11-06
OSVUBUNTU-CVE-2026-113496
5.0
A flaw was found in cockpit-machines. When saving Virtual Network Computing (VNC) console settings, the configured password is passed directly as a command-line argument to an underlying system utility. A local unprivileged attacker on a host that allows cross-user process inspection could read the exposed password from the process list while another user modifies settings. This credential disclosure can allow unauthorized access to the guest virtual machine's graphical console.
- Record
UBUNTU-CVE-2026-113496- CVSS 3.1
- 5.0 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
cockpit-machinesDebian:12 |
All versions, plus listed versions 288-1292-1293-1294-1295-1 Show 45 moreShow less295-1~bpo12+1296-1297-1297-1~bpo12+1298-1298-1~bpo12+1299-1299-1~bpo12+1300-1300-1~bpo12+1301-1302-1302-1~bpo12+1303-1303-1~bpo12+1304-1304-1~bpo12+1305-1305-1~bpo12+1306-1307-1307-1~bpo12+1309-1309-1~bpo12+1310-1310-1~bpo12+1312-1313-1313-2313-3314-1314-2314-2~bpo12+1315-1315-1~bpo12+1316-1317-1317-1~bpo12+1318-1318-1~bpo12+1319-1319-1~bpo12+1320-1320-1~bpo12+1321-1 |
None known |
cockpit-machinesDebian:13 |
All versions, plus listed versions 332-1334-1335-1336-1338-1 Show 33 moreShow less338-1~bpo13+1339-1339-1~bpo13+1341-1341-1~bpo13+1343-1343-1~bpo13+1345-1345-1~bpo13+1346-1346-1~bpo13+1347-1347-1~bpo13+1348-1348-1~bpo13+1350-1350-1~bpo13+1351-1351-1~bpo13+1353-1353-2353-3353-3~bpo13+1355-1355-1~bpo13+1356-1356-1~bpo13+1357-1357-1~bpo13+1359-1359-1~bpo13+1360-1360-1~bpo13+1 |
None known |
cockpit-machinesDebian:14 |
before 360-1, plus listed versions 332-1334-1335-1336-1338-1 Show 32 moreShow less338-1~bpo13+1339-1339-1~bpo13+1341-1341-1~bpo13+1343-1343-1~bpo13+1345-1345-1~bpo13+1346-1346-1~bpo13+1347-1347-1~bpo13+1348-1348-1~bpo13+1350-1350-1~bpo13+1351-1351-1~bpo13+1353-1353-2353-3353-3~bpo13+1355-1355-1~bpo13+1356-1356-1~bpo13+1357-1357-1~bpo13+1359-1359-1~bpo13+1360-1~bpo13+1 |
360-1 |
cockpit-machinesUbuntu:22.04:LTS |
All versions, plus listed versions 251-1254-1255-1256-1258-1 Show 7 moreShow less259-1260-1261-1262-1263-1264-1265-1 |
None known |
cockpit-machinesUbuntu:24.04:LTS |
All versions, plus listed versions 299-1300-1301-1302-1303-1 Show 5 moreShow less304-1305-1306-1307-1310-1 |
None known |
cockpit-machinesUbuntu:26.10 |
All versions, plus listed versions 351-1353-3355-1355-1ubuntu1356-1 |
None known |
cockpit-machinesUbuntu:26.04:LTS |
All versions, plus listed versions 339-1341-1343-1345-1346-1347-1348-1351-1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | OSV | |
| affected, facts | EUVD, NVD, OSV | |
| facts | CVE List | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-113496 is a medium vulnerability (CVSS 5.0) in Red Hat Enterprise Linux 10, published October 20, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.14%, the 3rd percentile. Fixed in cockpit-machines 360-1.
References
Left out here: 54 versions. The JSON record has them.