malcontent: Disk Space Exhaustion via Globally Accessible D-Bus API
Summary
| CVE | CVE-2026-44931 |
|---|---|
| State | PUBLISHED |
| Assigner | suse |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-05-13 13:01:55 UTC |
| Updated | 2026-05-13 15:35:35 UTC |
| Description | The newly introduced RecordUsage D-Bus method https://gitlab.freedesktop.org/pwithnall/malcontent/-/blob/0.14.0/libmalcontent-timer/child-timer-service.c in malcontent-timerd allows arbitrary users in the system to slowly fill up disk space in /var/lib/malcontent-timerd |
Risk And Classification
Primary CVSS: v4.0 5.1 MEDIUM from [email protected]
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS: 0.000130000 probability, percentile 0.021070000 (date 2026-05-13)
Problem Types: CWE-770 | CWE-770 CWE-770: Allocation of Resources Without Limits or Throttling
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 5.1 | MEDIUM | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/C... |
| 4.0 | CNA | CVSS | 5.1 | MEDIUM | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N |
CVSS v4.0 Breakdown
Attack Vector
LocalAttack Complexity
LowAttack Requirements
NonePrivileges Required
NoneUser Interaction
NoneConfidentiality
NoneIntegrity
NoneAvailability
LowSub Conf.
NoneSub Integrity
NoneSub Availability
NoneCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Gnome | Malcontent | affected 0.14 unknown custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| bugzilla.suse.com/show_bug.cgi | [email protected] | bugzilla.suse.com | |
| www.openwall.com/lists/oss-security/2026/05/11/1 | af854a3a-2127-422b-91ae-364da2661108 | www.openwall.com | |
| security.opensuse.org/2026/05/11/malcontent-disk-space-dos.html | [email protected] | security.opensuse.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Matthias Gerstner of SUSE (en)
There are currently no legacy QID mappings associated with this CVE.