CVE-2026-44931— malcontent: Disk Space Exhaustion via Globally Accessible D-Bus API
Quick assessment
Affected
gnome malcontent
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
malcontent是Chainguard开源的一个供应链攻击检测工具。 malcontent存在安全漏洞，该漏洞源于RecordUsage D-Bus方法允许系统任意用户缓慢填满/var/lib/malcontent-timerd目录的磁盘空间。
Possible ATT&CK Techniques 1 AI
T1074 · Data StagedAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| gnome | malcontent | 0.14< unknown |
affected |
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I. Basic Information for CVE-2026-44931
Vulnerability Information
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Vulnerability Title
malcontent: Disk Space Exhaustion via Globally Accessible D-Bus API
Source: CVE Program / CVE List V5
Vulnerability 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
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
malcontent 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
malcontent是Chainguard开源的一个供应链攻击检测工具。 malcontent存在安全漏洞，该漏洞源于RecordUsage D-Bus方法允许系统任意用户缓慢填满/var/lib/malcontent-timerd目录的磁盘空间。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| gnome | malcontent | 0.14 ~ unknown | - |
|
II. Public POCs for CVE-2026-44931
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-44931 (2)
IV. Related Vulnerabilities
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V. Comments for CVE-2026-44931
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