CVE-2026-96281
Flatpak: flatpak: unprivileged active user can bypass anti-downgrade checks for system apps/runtimes
Description
On a multi-user system, a user with an active local login session could downgrade a system-wide Flatpak app to an older version by removing the app's remote ref via the unprivileged system-helper RemoveLocalRef method, causing the anti-downgrade check to fail to find a reference date. A malicious local user could use this to expose other users of the same system to an app version with unfixed vulnerabilities.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:PAttack VectorPhysical
AC:HAttack ComplexityHigh
PR:LPrivileges RequiredLow
UI:RUser InteractionRequired
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
Red Hat
commercial·US
and 3 more affected products View all →
Exploitability
Workaround Available
References
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