Vulnerabilities CVE-2026-58015

CVE-2026-58015

Medium

Open

TLP:CLEAR

Glib: path traversal in glib/gio/gdbusauthmechanismsha1.c via keyring_lookup_entry and mechanism_client_data_receive

NVD CVE.org

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Description

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.

Details

CVSS Score: 5.9
EPSS Score ⓘ: 0.48%

39.2th percentile
CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Confidence: 90%
Published: Jun 30, 2026
Last Modified: Aug 3, 2026

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