VulnerabilityModified

CVE-2018-6560

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…

HIGH 8.8EPSS 0.41%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.41%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

CVSS 3.0: 8.8 HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS: 0.41% probability · 35th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-436
Affected: flatpak/flatpak · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux server aus · redhat/enterprise linux server eus · redhat/enterprise linux server tus · redhat/enterprise linux workstation
Source: cve@mitre.org

EPSS trend

EPSS 0.4% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

https://access.redhat.com/errata/RHSA-2018:2766Third Party Advisory
https://github.com/flatpak/flatpak/commit/52346bf187b5a7f1c0fe9075b328b7ad6abe78f6Patch, Vendor Advisory
https://github.com/flatpak/flatpak/releases/tag/0.10.3Release Notes
https://github.com/flatpak/flatpak/releases/tag/0.8.9Release Notes
https://access.redhat.com/errata/RHSA-2018:2766Third Party Advisory
https://github.com/flatpak/flatpak/commit/52346bf187b5a7f1c0fe9075b328b7ad6abe78f6Patch, Vendor Advisory
https://github.com/flatpak/flatpak/releases/tag/0.10.3Release Notes
https://github.com/flatpak/flatpak/releases/tag/0.8.9Release Notes

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.