Read the docs
TI-2018-04836 Aliases CVE-2018-6560GHSA-5xcx-r88v-8v7g

In dbus-proxy/flatpak-proxy.c in Flatpak before 0.8.9, and 0.9.x and 0.10.x before…

Priority LOW 38CWE-436Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
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

In dbus-proxy/flatpak-proxy.c in Flatpak before 0.8.9, and 0.9.x and 0.10.x before 0.10.3, crafted D-Bus messages to the host can be used to break out of the sandbox, because whitespace handling in the proxy is not identical to whitespace handling in the daemon.

Why it matters now

EPSS 0.00412 35th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory

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 · 8

CPEVersionsRoleVendor
cpe:2.3:a:flatpak:flatpak:*:*:*:*:*:*:*:*before 0.8.9; 0.9.1 – 0.9.99; 0.10.0 to before 0.10.3Vulnerableflatpak
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*7.5VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
  • cpe:2.3:a:flatpak:flatpak:*:*:*:*:*:*:*:* Versions before 0.8.9; 0.9.1 – 0.9.99; 0.10.0 to before 0.10.3 Vulnerable ·flatpak
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* Versions 7.5 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat

Remediation

Red Hat 1 advisory

  • RHSA-2018:2766 Released 2018-09-25 · Red Hat rating Moderate
    flatpak security update
    • Red Hat Enterprise Linux Client (v. 7) flatpak-0.8.8-4.el7_5, flatpak-libs-0.8.8-4.el7_5
    • Red Hat Enterprise Linux Client Optional (v. 7) flatpak-builder-0.8.8-4.el7_5, flatpak-devel-0.8.8-4.el7_5
    • Red Hat Enterprise Linux Server (v. 7) flatpak-0.8.8-4.el7_5, flatpak-libs-0.8.8-4.el7_5
    • Red Hat Enterprise Linux Server Optional (v. 7) flatpak-builder-0.8.8-4.el7_5, flatpak-devel-0.8.8-4.el7_5
    • Red Hat Enterprise Linux Workstation (v. 7) flatpak-0.8.8-4.el7_5, flatpak-libs-0.8.8-4.el7_5
    • Red Hat Enterprise Linux Workstation Optional (v. 7) flatpak-builder-0.8.8-4.el7_5, flatpak-devel-0.8.8-4.el7_5
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) flatpak-0.8.8-4.el7_5, flatpak-libs-0.8.8-4.el7_5
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) flatpak-builder-0.8.8-4.el7_5, flatpak-devel-0.8.8-4.el7_5

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2018:2766
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2018:2766
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2018:2766
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2018:2766
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2018:2766
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2018:2766
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)Fixed RHSA-2018:2766
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7)Fixed RHSA-2018:2766
Not affected: 1 product
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-6560
  2. 2026-10-03 Alias added: GHSA-5xcx-r88v-8v7g

References

Patch 1

Advisory 1

Other 2

Sources

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