VULNERABILITY INTELLIGENCE
CVE-2026-15588
CVSS score5.3 MEDIUM
EPSS probability0.48%
CISA KEVNot currently listed
Published2026-07-20
Last modified2026-10-30
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Description
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.
Weakness classification
- secalert@redhat.com: CWE-770