PT-2026-53874 · Red Hat · Red Hat Enterprise Linux 10+5

Published 2026-06-30 · Updated 2026-06-30 · CVE-2026-58015

NVD

CVSS v3.1

5.9

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

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.

Fix

Related Identifiers

CVE-2026-58015

Affected Products

Red Hat Enterprise Linux 10

Red Hat Enterprise Linux 6

Red Hat Enterprise Linux 7

Red Hat Enterprise Linux 8

Red Hat Enterprise Linux 9

Red Hat Hardened Images

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-58015 · Security Note
• https://access.redhat.com/security/cve/CVE-2026-58015 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2492256 · Note
• https://gitlab.gnome.org/GNOME/glib/-/issues/3931 · Note