CVE-2026-39959

Source
https://cve.org/CVERecord?id=CVE-2026-39959
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-39959.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-39959
Aliases
Published
2026-04-09T16:29:20.616Z
Modified
2026-07-08T08:13:37.585891691Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H CVSS Calculator
Summary
Tmds.DBus: malicious D-Bus peers can spoof signals, exhaust file descriptor resources, and cause denial of service
Details

Tmds.DBus provides .NET libraries for working with D-Bus from .NET. Tmds.DBus and Tmds.DBus.Protocol are vulnerable to malicious D-Bus peers. A peer on the same bus can spoof signals by impersonating the owner of a well-known name, exhaust system resources or cause file descriptor spillover by sending messages with an excessive number of Unix file descriptors, and crash the application by sending malformed message bodies that cause unhandled exceptions on the SynchronizationContext. This vulnerability is fixed in Tmds.DBus 0.92.0 and Tmds.DBus.Protocol 0.92.0 and 0.21.3.

Database specific
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39959.json",
    "cwe_ids": [
        "CWE-290",
        "CWE-770"
    ],
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/tmds/tmds.dbus

Affected ranges

Type
GIT
Repo
https://github.com/tmds/tmds.dbus
Events
Database specific
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.92.0"
        },
        {
            "fixed": "0.21.3"
        },
        {
            "introduced": "0.22.0"
        }
    ]
}

Affected versions

0.*
0.3.0
rel/0.*
rel/0.10
rel/0.11.0
rel/0.12.0
rel/0.13.0
rel/0.14.0
rel/0.15.0
rel/0.16.0
rel/0.17.0
rel/0.18.0
rel/0.19.0
rel/0.2.0
rel/0.20.0
rel/0.21.0
rel/0.21.1
rel/0.21.2
rel/0.22.0
rel/0.23.0
rel/0.4.0
rel/0.5.0
rel/0.6.0
rel/0.7.0
rel/0.8.0
rel/0.9.0
rel/0.9.1
rel/0.90.0
rel/0.90.1
rel/0.90.2
rel/0.90.3
rel/0.91.0
rel/0.91.1

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-39959.json"