CVE-2026-58015
CVE-2026-58015: 1 tracked advisory record across Red Hat. Compare source-reported impact, fixes and remediation.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityMedium5.9
Medium [CVE-2026-58015] path traversal in glib/gio/gdbusauthmechanismsha1.c via keyring_lookup_entry and mechanism_client_data_receive
CVE-2026-58015Source published Source 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 generated hash. To exploit this flaw, an attacker must be in a position to perform a man-in-the-middle (MitM) attack on the connection or operate a malicious server that the client connects to. Furthermore, extracting data requires an oracle attack (guessing and hashing), increasing the complexity of exploitation. However, if successful, this issue allows the exfiltration of sensitive secrets…
- Affected products in this advisory
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat Update Infrastructure 5
4 more entries in the full advisory.
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- glib2-0:2.80.4-12.el10_2.21
- mingw-glib2-0:2.70.1-9.el8_10
- glib2-0:2.68.4-19.el9_8.9
- rhui5/cds-kubernetes-tp-rhel9:1787241211
6 more entries in the full advisory.
- Mitigation guidance
- To mitigate this vulnerability, ensure that applications only connect to trusted D-Bus servers and operate within secure, isolated networks to prevent man-in-the-middle (MitM) attacks. If feasible, configuring the D-Bus connection to strictly require the EXTERNAL authentication mechanism and disabling DBUS_COOKIE_SHA1 will completely neutralize this issue.
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