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NVD 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.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
NONE
Momentum
NONE
CVE-2026-16730 Denial of Service in dbus-broker via File Descriptor Exhaustion https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-16730
Post summary
The post announces a denial‑of‑service vulnerability (CVE‑2026‑16730) in dbus‑broker that is caused by file descriptor exhaustion, linking to further details.