RHSA-2026:55440: Moderate: glib2 security update
GLib provides the core application building blocks for libraries and applications written in C. It provides the core object system used in GNOME, the main loop implementation, and a large set of utility functions for strings and common data structures.Security Fix(es): glib: buffer over-read in glib/gvariant-serialiser.c via gvstupleisnormal() (CVE-2026-58010) glib: out-of-bounds read in glib/gdatetime.c:gdatetimegetymd via invalid GDateTime (CVE-2026-58011) glib: buffer over-read in gregexreplace() via glib/gregex.c:stringappend() and gutf8nextchar() (CVE-2026-58012) glib: buffer over-read in glib/giochannel.c via "giochannelreadlinebackend" (CVE-2026-58013) glib: off-by-one error in glib/gkeyfile.c via "gkeyfilegetlocalestringlist" (CVE-2026-58014) glib: path traversal in glib/gio/gdbusauthmechanismsha1.c via keyringlookupentry and mechanismclientdatareceive (CVE-2026-58015) GDBusServer: glib2: GDBusServer pre-authentication DoS via unbounded SASL line buffering (CVE-2026-15588) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
redhat/glib2to a version that resolves this vulnerability.Fixed in 2.68.4-19.el9_8.9 - Upgrade
Upgrade
redhat/glib2-debuginfoto a version that resolves this vulnerability.Fixed in 2.68.4-19.el9_8.9 - Upgrade
Upgrade
redhat/glib2-debugsourceto a version that resolves this vulnerability.Fixed in 2.68.4-19.el9_8.9 - Upgrade
Upgrade
redhat/glib2-develto a version that resolves this vulnerability.Fixed in 2.68.4-19.el9_8.9 - Upgrade
Upgrade
redhat/glib2-devel-debuginfoto a version that resolves this vulnerability.Fixed in 2.68.4-19.el9_8.9 - Upgrade
Upgrade
redhat/glib2-docto a version that resolves this vulnerability.Fixed in 2.68.4-19.el9_8.9 - Upgrade
Upgrade
redhat/glib2-teststo a version that resolves this vulnerability.Fixed in 2.68.4-19.el9_8.9 - Upgrade
Upgrade
redhat/glib2-tests-debuginfoto a version that resolves this vulnerability.Fixed in 2.68.4-19.el9_8.9 - Upgrade
Upgrade
redhat/glib2to a version that resolves this vulnerability.Fixed in 2.68.4-19.el9_8.9.aa - Upgrade
Upgrade
redhat/glib2-debuginfoto a version that resolves this vulnerability.Fixed in 2.68.4-19.el9_8.9.aa - Upgrade
Upgrade
redhat/glib2-debugsourceto a version that resolves this vulnerability.Fixed in 2.68.4-19.el9_8.9.aa - Upgrade
Upgrade
redhat/glib2-develto a version that resolves this vulnerability.Fixed in 2.68.4-19.el9_8.9.aa - Upgrade
Upgrade
redhat/glib2-devel-debuginfoto a version that resolves this vulnerability.Fixed in 2.68.4-19.el9_8.9.aa - Upgrade
Upgrade
redhat/glib2-teststo a version that resolves this vulnerability.Fixed in 2.68.4-19.el9_8.9.aa - Upgrade
Upgrade
redhat/glib2-tests-debuginfoto a version that resolves this vulnerability.Fixed in 2.68.4-19.el9_8.9.aa - Upgrade
Upgrade
redhat/glib2-staticto a version that resolves this vulnerability.Fixed in 2.68.4-19.el9_8.9 - Upgrade
Upgrade
redhat/glib2-staticto a version that resolves this vulnerability.Fixed in 2.68.4-19.el9_8.9.aa - Upgrade
Upgrade
glib2to a version that resolves this vulnerability.Patch CVE-2026-15588 - Upgrade
Upgrade
glib2to a version that resolves this vulnerability.Patch CVE-2026-58012 - Upgrade
Upgrade
glib2to a version that resolves this vulnerability.Patch CVE-2026-58013 - Upgrade
Upgrade
glib2to a version that resolves this vulnerability.Patch CVE-2026-58014 - Upgrade
Upgrade
glib2to a version that resolves this vulnerability.Patch CVE-2026-58011 - Upgrade
Upgrade
glib2to a version that resolves this vulnerability.Patch CVE-2026-58015 - Upgrade
Upgrade
glib2to a version that resolves this vulnerability.Patch CVE-2026-58010
Event History
Frequently Asked Questions
What is the severity of RHSA-2026:55440?
The severity of RHSA-2026:55440 is classified as moderate.
How do I fix RHSA-2026:55440?
To fix RHSA-2026:55440, update the GLib packages to the latest version provided by Red Hat.
What software is affected by RHSA-2026:55440?
The affected software for RHSA-2026:55440 includes glib2, glib2-debuginfo, glib2-debugsource, glib2-devel, glib2-devel-debuginfo, glib2-tests, glib2-tests-debuginfo, and glib2-static.
What type of vulnerability is addressed by RHSA-2026:55440?
RHSA-2026:55440 addresses a buffer over-read vulnerability classified under the CWE category of Path Traversal.
When was RHSA-2026:55440 published?
RHSA-2026:55440 was published on August 17, 2026.