Vulnerability in Gnome Glib

CVE-2026-58015

A flaw was found in GLib. The D-Bus client-side implementation of the DBUS_COOKIE_SHA1 SASL authentication mechanism does not validate the cookie_context parameter received from the server. A malicious D-Bus server can supply a cookie_cont…

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

References

Frequently asked questions

What is CVE-2026-58015?
CVE-2026-58015 is a medium-severity vulnerability in Gnome Glib. CVSS score: 5.9/10. Published 2026-06-30.
How severe is CVE-2026-58015?
Medium severity. CVSS v3 base score is 5.9 out of 10.