CVE-2026-94422

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Source
https://cve.org/CVERecord?id=CVE-2026-94422
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-94422.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-94422
Aliases
  • GHSA-2cgv-pwcq-wvpq
Downstream
Related
Published
2026-10-02T13:54:10Z
Modified
2026-10-03T03:47:01Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
xdg-dbus-proxy: message filtering bypass via reply serial allows sandbox escape
Details

An incorrect implementation of message filtering in xdg-dbus-proxy versions before 0.1.9 allows an attacker to bypass the intended message filtering on the D-Bus session bus by setting a reply serial number on non-reply messages. A malicious or compromised Flatpak app could use this to achieve arbitrary code execution outside its sandbox. xdg-dbus-proxy was designed to be part of the sandbox boundary for Flatpak, but it is released as a separate project and is sometimes used by other app frameworks such as Firejail.

Database specific 
{
    "cna_assigner":  "redhat",
    "cwe_ids":  [
        "CWE-290"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/94xxx/CVE-2026-94422.json"
}
References

Affected packages

Git / github.com/flatpak/xdg-dbus-proxy

Affected ranges

Type
GIT
Repo
https://github.com/flatpak/xdg-dbus-proxy
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
72b40c8f6d9d585cfbdb249690724f740d207087
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "0.1.9"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

0.*
0.1.0
0.1.1
0.1.2
0.1.3
0.1.4
0.1.5
0.1.6
0.1.7
0.1.8

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-94422.json"