{"id":"CVE-2026-58015","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-58015","summary":"Glib: path traversal in glib/gio/gdbusauthmechanismsha1.c via keyring_lookup_entry and mechanism_client_data_receive","details":"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.","published":"2026-06-30T13:02:45.854Z","modified":"2026-08-21T03:30:11.758940047Z","cvss":{"score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://access.redhat.com/downloads/content/package-browser/"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:49512"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:55440"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:57015"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-58015"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58015.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-58015"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2492256"},{"type":"REPORT","url":"https://gitlab.gnome.org/GNOME/glib/-/issues/3931"},{"type":"PACKAGE","url":"https://gitlab.gnome.org/GNOME/glib/"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-21T03:30:11.758940047Z"}}