CVE-2026-16730
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Red Hat Enterprise Linux 10
PublishedJul 24, 2026
First seenJul 24, 2026
Weakness typeCWE-755CWE-755
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat Red Hat Enterprise Linux 10 | No range specified | — |
| enterprise_linux 9 | No range specified | — |
| rhui 5 | No range specified | — |
| Red Hat Red Hat Hardened Images | No range specified | — |
| Red Hat Red Hat OpenShift Container Platform 4 | No range specified | — |
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