CVE WatchJul 21, 2026

CVE-2026-15588

A denial-of-service and resource exhaustion vulnerability exists within the `GDBus` component of GLib. The `gdbusauth` authentication mechan

CVSS

5.3

Medium

EPSS

0.2%

p16

KEV

—

Exploit Today

0-100

Published: Jul 20, 2026 · Last modified: Jul 21, 2026 · CWE-770

EPSS · 30d

Not enough EPSS history yet.

Technical 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.

Official references

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