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5.9 Medium

CVE-2026-58015 Glib: path traversal in glib/gio/gdbusauthmechanismsha1.c via keyring_lookup_entry and mechanism_client_data_receive

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.

CVSS 3.1 detail

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

Exploitable remotely over the network, without an account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.

Attack vector
Network
Attack complexity
High
Privileges required
None
Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

Affected products and versions

Product Affected versions Fixed in
Red Hat Enterprise Linux 10 Versions not published
Red Hat Enterprise Linux 6 Versions not published
Red Hat Enterprise Linux 7 Versions not published
Red Hat Enterprise Linux 8 Versions not published
Red Hat Enterprise Linux 9 Versions not published
Red Hat Hardened Images Versions not published
glib 2.88 earliest → < 2.88.1 2.88.1
Red Hat Update Infrastructure 5 1788880581 earliest → < 1788880581 1788880581
Red Hat OpenShift Container Platform 4 Versions not published
Show the 30 other branches
Product Affected versions Fixed in
Red Hat Discovery 2 1788206196 earliest → < 1788206196 1788206196
Cert Manager support for Red Hat OpenShift release 1.19 1788348594 earliest → < 1788348594 1788348594
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Versions not published
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Versions not published
Red Hat Enterprise Linux 7 Extended Lifecycle Support Versions not published
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 10.0 Extended Update Support Versions not published
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Versions not published
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On Versions not published
Red Hat Enterprise Linux 8.8 Telecommunications Update Service Versions not published
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Versions not published
Red Hat Enterprise Linux 9.6 Extended Update Support Versions not published
Red Hat OpenShift Container Platform 4.22 4.22 earliest → < 4.22.9.8.202609081748-0 4.22.9.8.202609081748-0
Cert Manager support for Red Hat OpenShift release 1.20 1790598593 earliest → < 1790598593 1790598593
Red Hat AI Inference Server 3.2 1790621713 earliest → < 1790621713 1790621713
Red Hat OpenShift AI 3.0 1790276974 earliest → < 1790276974 1790276974
Red Hat OpenShift AI 3.2 1790703494 earliest → < 1790703494 1790703494
Red Hat OpenShift Container Platform 4.12 412.86 earliest → < 412.86.202609171314-0 412.86.202609171314-0
Red Hat OpenShift AI 3.4 1791232048 earliest → < 1791232048 1791232048
Red Hat OpenShift AI 3.5 1790703706 earliest → < 1790703706 1790703706
Red Hat OpenShift Container Platform 4.14 414.92 earliest → < 414.92.202609282130-0 414.92.202609282130-0
Red Hat AI Inference Server 3.5 1791473614 earliest → < 1791473614 1791473614
Cert Manager support for Red Hat OpenShift release 1.17 1791970484 earliest → < 1791970484 1791970484
Cert Manager support for Red Hat OpenShift release 1.18 1791966259 earliest → < 1791966259 1791966259
Red Hat OpenShift Container Platform 4.13 413.92 earliest → < 413.92.202609302032-0 413.92.202609302032-0
Red Hat OpenShift Container Platform 4.15 415.92 earliest → < 415.92.202610081130-0 415.92.202610081130-0
Red Hat Enterprise Linux AI 3.5 1793135863 earliest → < 1793135863 1793135863
Red Hat OpenShift Container Platform 5 Versions not published
Red Hat OpenShift AI (RHOAI) Versions not published

Other CVEs of Red Hat Enterprise Linux 10

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CVE-2026-123876 Podman: containers-common: containers-common: default seccomp af_vsock/netlink_audit deny rules bypassable via 32-bit truncation 4.4 Medium CVE-2026-120749 Dbus: dbus-daemon: dbus-daemon aborts (reply_serial != 0) when a broadcast from the driver cannot be delivered to a monitored bus 6.2 Medium CVE-2026-123037 Ansible-core: user module generate_ssh_key follows a symlinked ~/.ssh enabling local privilege escalation (incomplete fix of cve-2024-9902) 6.7 Medium CVE-2026-123151 Gdb: gdb: stack buffer overflow in parse_tsv_definition via stale rs->buf tail Not rated
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