CVEvulnerability
CVE-2026-16730
5.5 MEDIUM
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-07-24
- Last modified
- 2026-09-10
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-755
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.
Related
Weakness · CWE (1)
- CWE-755 Improper Handling of Exceptional Conditions weakness
References
- https://access.redhat.com/errata/RHSA-2026:61340 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:61355 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:66018 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-16730 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2506348 bugzilla.redhat.com
- https://github.com/bus1/dbus-broker/issues/435 github.com