CVE-2026-58015
A flaw was found in GLib.
Published Jun 30, 2026 · updated Oct 14, 2026 · gnome glib
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.
Timeline
Detection, updates, and resolution for this record.
Jun 30, 2026 · NIST NVD
Detected
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
Oct 14, 2026 · NIST NVD
Updated
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
Affected
- cpe gnome/glibversion unspecified
- cpe redhat/enterprise linux10.0
- cpe redhat/enterprise linux6.0
- cpe redhat/enterprise linux7.0
- cpe redhat/enterprise linux8.0
- cpe redhat/enterprise linux9.0
Sources
- CVE.orgCVE-2026-58015
Official CVE identifier
cve.org - FIRST EPSSCVE-2026-58015
30-day exploitation probability 0.8%
first.org - NIST NVDCVE-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_context containing path traversal sequences,
nvd.nist.gov