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_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.
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.
- 🔗 access.redhat.com/errata/RHSA-2026:49512
- 🔗 access.redhat.com/errata/RHSA-2026:55440
- 🔗 access.redhat.com/errata/RHSA-2026:57015
- 🔗 access.redhat.com/security/cve/CVE-2026-58015
- 🔗 bugzilla.redhat.com/show_bug.cgi
- 🔗 gitlab.gnome.org/GNOME/glib/-/issues/3931
- 🔗 access.redhat.com/errata/RHSA-2026:58981
- 🔗 access.redhat.com/errata/RHSA-2026:61766
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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_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.
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_conte