CVE-2026-96281
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
17/100
Published: 2026-09-27
Modified: 2026-11-06
First seen: 2026-11-06
Status: active
Attack Surface
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Physical
AC:
High
PR:
Low
UI:
Required
S:
Unchanged
C:
High
I:
High
A:
High
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.
Weakness Classification (1)
References & Advisories (3)
vdb-entry
x_refsource_REDHAT
issue-tracking
x_refsource_REDHAT