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TI-2019-07389 Aliases CVE-2019-10063GHSA-mc9j-733x-89cx

Flatpak before 1.0.8, 1.1.x and 1.2.x before 1.2.4, and 1.3.x before 1.3.1 allows a…

Priority MEDIUM 43CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.

Summary

Flatpak before 1.0.8, 1.1.x and 1.2.x before 1.2.4, and 1.3.x before 1.3.1 allows a sandbox bypass. Flatpak versions since 0.8.1 address CVE-2017-5226 by using a seccomp filter to prevent sandboxed apps from using the TIOCSTI ioctl, which could otherwise be used to inject commands into the controlling terminal so that they would be executed outside the sandbox after the sandboxed app exits. This fix was incomplete: on 64-bit platforms, the seccomp filter could be bypassed by an ioctl request number that has TIOCSTI in its 32 least significant bits and an arbitrary nonzero value in its 32 most significant bits, which the Linux kernel would treat as equivalent to TIOCSTI.

Why it matters now

EPSS 0.01909 79th percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:flatpak:flatpak:*:*:*:*:*:*:*:*before 1.0.8; 1.1.0 – 1.1.3; 1.2.0 to before 1.2.4Vulnerableflatpak
cpe:2.3:a:flatpak:flatpak:1.3.0:*:*:*:*:*:*:*1.3.0Vulnerableflatpak
  • cpe:2.3:a:flatpak:flatpak:*:*:*:*:*:*:*:* Versions before 1.0.8; 1.1.0 – 1.1.3; 1.2.0 to before 1.2.4 Vulnerable ·flatpak
  • cpe:2.3:a:flatpak:flatpak:1.3.0:*:*:*:*:*:*:* Versions 1.3.0 Vulnerable ·flatpak

Remediation

Red Hat 2 advisories

  • RHSA-2019:1143 Released 2019-05-13 · Red Hat rating Important
    flatpak security update
    • Red Hat Enterprise Linux AppStream (v. 8) flatpak-1.0.6-3.el8_0, flatpak-libs-1.0.6-3.el8_0
  • RHSA-2019:1024 Released 2019-05-07 · Red Hat rating Important
    flatpak security update
    • Red Hat Enterprise Linux Client (v. 7) flatpak-1.0.2-5.el7_6, flatpak-libs-1.0.2-5.el7_6
    • Red Hat Enterprise Linux Client Optional (v. 7) flatpak-builder-1.0.0-5.el7_6, flatpak-devel-1.0.2-5.el7_6
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) flatpak-1.0.2-5.el7_6, flatpak-builder-1.0.0-5.el7_6, flatpak-devel-1.0.2-5.el7_6 +1
    • Red Hat Enterprise Linux Server (v. 7) flatpak-1.0.2-5.el7_6, flatpak-libs-1.0.2-5.el7_6
    • Red Hat Enterprise Linux Server Optional (v. 7) flatpak-builder-1.0.0-5.el7_6, flatpak-devel-1.0.2-5.el7_6
    • Red Hat Enterprise Linux Workstation (v. 7) flatpak-1.0.2-5.el7_6, flatpak-libs-1.0.2-5.el7_6
    • Red Hat Enterprise Linux Workstation Optional (v. 7) flatpak-builder-1.0.0-5.el7_6, flatpak-devel-1.0.2-5.el7_6
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) flatpak-1.0.2-5.el7_6, flatpak-libs-1.0.2-5.el7_6
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) flatpak-builder-1.0.0-5.el7_6, flatpak-devel-1.0.2-5.el7_6

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2019:1143
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2019:1024
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2019:1024
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2019:1024
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2019:1024
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2019:1024
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2019:1024
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2019:1024
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)Fixed RHSA-2019:1024
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7)Fixed RHSA-2019:1024

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-10063
  2. 2026-10-03 Alias added: GHSA-mc9j-733x-89cx

References

Patch 1

Advisory 2

  • TI-2026-26401 Flatpak has a complete sandbox escape leading to host file access and code execution in the host context CVSS 4.0CRITICAL 9.3
  • TI-2024-28440 Flatpak may allow access to files outside sandbox for certain apps CVSS 3.1CRITICAL 10.0
  • TI-2023-12679 TIOCLINUX can send commands outside sandbox if running on a virtual console CVSS 3.1CRITICAL 10.0
  • TI-2026-26402 Flatpak affected by arbitrary file deletion on the host filesystem CVSS 4.0HIGH 8.7
  • TI-2021-19666 Permissions granted to applications can be hidden from the user at install time CVSS 3.1HIGH 8.6
  • TI-2021-17972 Sandbox bypass via recent VFS-manipulating syscalls CVSS 3.1HIGH 8.8
See all 14 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences