CVE-2026-15588

CVE-2026-15588 · Gdbusserver: glib2: gdbusserver pre-authentication dos via unbounded sasl line buffering

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This page shows selected source facts. See the linked advisories for the complete description and affected versions.

A denial-of-service and resource exhaustion vulnerability exists within the `GDBus` component of GLib. The `gdbusauth` authentication mechanism fails to enforce proper length limitations on data lines read from a client. An unauthenticated local or remote attacker can exploit this lack of input validation by sending excessively long streams of data, causing the application to consume massive amounts of system memory and CPU, potentially leading to a crash or system hang.

CVSS 5.3 · Medium · EPSS 0.5% · Fix available

Published

2026-07-20T12:12:06.844Z

Updated

2026-10-14T19:24:54.842Z

Stack: system

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