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CVE-2026-16730

MEDIUM
5.5
CVSS Severity Score
EPSS Score0.0000%
EPSS Percentile0.00th
Published2026-07-24
Last Modified2026-07-24
Data SourcesNVD

Vulnerability Description

A flaw was found in dbus-broker. When the process file-descriptor limit is reached, EMFILE/ENFILE errors during peer setup (notably SO_PEERPIDFD) are handled as fatal failures, causing the broker to exit. A local attacker who can open many connections to the user session bus can trigger this and deny service to the desktop session. Flatpak applications can reach the host session bus through the dbus proxy.

Affected Platforms (CPE)

No CPE configurations currently published for this record.

References & Advisories

🔗 https://access.redhat.com/security/cve/CVE-2026-16730
🔗 https://bugzilla.redhat.com/show_bug.cgi?id=2506348
🔗 https://github.com/bus1/dbus-broker/issues/435

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