This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-58015 →

DEBIAN-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_cont...

Original description

The description as published by the source.

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_context containing path traversal sequences, causing the client to read an arbitrary file and exfiltrate sensitive data by verifying guessed file contents against a generated hash.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 glib2.0

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 glib2.0

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.84.4-3~deb13u4"}]}]

Debian:14 glib2.0

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.88.1-2"}]}]

References

advisory security-tracker.debian.org