CVE-2026-58015

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

CVSS 5.9 MEDIUMEPSS 0.3%CWE-22

Vexday Risk Score

13Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

CVSS 5.9EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

30 jun 2026Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

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.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Produtos afetados

GNOME · GLib Red Hat · Red Hat Enterprise Linux 10 Red Hat · Red Hat Enterprise Linux 6 Red Hat · Red Hat Enterprise Linux 7 Red Hat · Red Hat Enterprise Linux 8 Red Hat · Red Hat Enterprise Linux 9 Red Hat · Red Hat Hardened Images

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Referências

https://access.redhat.com/security/cve/CVE-2026-58015 https://bugzilla.redhat.com/show_bug.cgi?id=2492256 https://gitlab.gnome.org/GNOME/glib/-/issues/3931