CVE-2026-92162 Flatpak - Privilege Escalation

Flatpak < 1.18.1 contains a local privilege escalation caused by crafted architecture name tricking flatpak-system-helper to create root-owned files outside intended directories, letting local users escalate privileges, exploit requires configured OCI remote.

CVSS base score 7.2 /10
High
CISA KEV
Not listed
Public exploit
Proof of concept available
Authentication
Required
View the NVD record ↗

Details

Type
Privilege Escalation
Impact
Privilege Escalation
CVSS vector
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
20 October 2026
Updated
21 October 2026
Weakness
CWE-22

Vendor fix

Update to version 1.18.1 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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