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No exploitation reportedFix available

CVE-2023-28101

No exploitation reported by the sources we read.

  • Published2023-03-16
  • Fixed in1.15.4 · 1.14.4 · 1.12.8 · 1.10.8
  • WeaknessCWE-116

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC
  1. 2023-03-1616:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-28101?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-28101?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Flatpak
BranchAffectedFixed in
1.15≥ 1.15.0, < 1.15.41.15.4
1.14≥ 1.14.0, < 1.14.41.14.4
1.12≥ 1.12.0, < 1.12.81.12.8
1.10< 1.10.81.10.8

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • flatpakAlmaLinux:9all versions · fixed in 1.12.8-1.el9and 4 other packages
  • flatpakAlmaLinux:8all versions · fixed in 1.10.8-1.el8and 4 other packages

Full record on NVD

Fix

  1. Update Flatpak to 1.15.4 · 1.14.4 · 1.12.8 · 1.10.8

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • CISA-ADPSSVC decisionnone2025-02-25
  • OpenCVESSVC decisionnone—
  • CNACVSS 3.15read 2026-10-23
  • NVDCVSS 3.14.3read 2026-10-23
  • CNAweakness (CWE)CWE-116read 2026-10-23
  • FIRST EPSSEPSS score0.9 %2026-10-23
  • OSVaffected packages—

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Published
2023-03-16
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2023-28101?

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.

Is CVE-2023-28101 actively exploited?

Active exploitation of CVE-2023-28101 has not been confirmed. Its EPSS score was 0.9% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-28101?

CVE-2023-28101 has a CVSS v3 base score of 4.3 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

Running flatpak? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

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