CVE-2023-28101

Flatpak metadata with ANSI control codes can cause misleading terminal output

MEDIUM
4.3
CVSS Score
Published: March 16, 2023 at 03:55 PM UTC
Updated: June 17, 2026 at 05:46 AM UTC
1 product affected across 1 vendorFlatpak

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.9%
SSVC
No known exploit

Description

Flatpak is a system for building, distributing, and running sandboxed desktop applications on Linux. In versions prior to 1.10.8, 1.12.8, 1.14.4, and 1.15.4, if an attacker publishes a Flatpak app with elevated permissions, they can hide those permissions from users of the `flatpak(1)` command-line interface by setting other permissions to crafted values that contain non-printable control characters such as `ESC`. A fix is available in versions 1.10.8, 1.12.8, 1.14.4, and 1.15.4. As a workaround, use a GUI like GNOME Software rather than the command-line interface, or only install apps whose maintainers you trust.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 1.10.8v < 1.12.8v < 1.14.4v < 1.15.41.12.0 ≤ v < 1.12.81.14.0 ≤ v < 1.14.41.15.0 ≤ v < 1.15.4
Affected range stops below 1.10.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.12.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.14.4, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.15.4, so it looks safe — our inference, not a vendor statement

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-116

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