RHSA-2026:49512: Important: mingw-glib2 security update

Published Aug 3, 2026
·
Updated

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: GLib: Buffer underflow in GVariant parser leads to heap corruption (CVE-2025-14087) 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) glib: integer underflow in gio/gdbusintrospection.c via "gdbusnodeinfonewforxml" (CVE-2026-58016) 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

8 affected componentsFixes available
Red Hat Red Hat CodeReady Linux Builder for x86_64
redhat/mingw-glib2<2.70.1-9.el8_10
2.70.1-9.el8_10
redhat/mingw32-glib2<2.70.1-9.el8_10
2.70.1-9.el8_10
redhat/mingw32-glib2-debuginfo<2.70.1-9.el8_10
2.70.1-9.el8_10
redhat/mingw32-glib2-static<2.70.1-9.el8_10
2.70.1-9.el8_10
redhat/mingw64-glib2<2.70.1-9.el8_10
2.70.1-9.el8_10
redhat/mingw64-glib2-debuginfo<2.70.1-9.el8_10
2.70.1-9.el8_10
redhat/mingw64-glib2-static<2.70.1-9.el8_10
2.70.1-9.el8_10

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/mingw-glib2 to a version that resolves this vulnerability.

    Fixed in 2.70.1-9.el8_10
  2. Upgrade

    Upgrade redhat/mingw32-glib2 to a version that resolves this vulnerability.

    Fixed in 2.70.1-9.el8_10
  3. Upgrade

    Upgrade redhat/mingw32-glib2-debuginfo to a version that resolves this vulnerability.

    Fixed in 2.70.1-9.el8_10
  4. Upgrade

    Upgrade redhat/mingw32-glib2-static to a version that resolves this vulnerability.

    Fixed in 2.70.1-9.el8_10
  5. Upgrade

    Upgrade redhat/mingw64-glib2 to a version that resolves this vulnerability.

    Fixed in 2.70.1-9.el8_10
  6. Upgrade

    Upgrade redhat/mingw64-glib2-debuginfo to a version that resolves this vulnerability.

    Fixed in 2.70.1-9.el8_10
  7. Upgrade

    Upgrade redhat/mingw64-glib2-static to a version that resolves this vulnerability.

    Fixed in 2.70.1-9.el8_10

Event History

Aug 3, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·12:56 AM
Data Sourced
via Red Hat·12:56 AM
Severity
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Frequently Asked Questions

1

What is the severity of RHSA-2026:49512?

The severity of RHSA-2026:49512 is high with a rating of 7.

2

What types of software are affected by RHSA-2026:49512?

RHSA-2026:49512 affects the Red Hat CodeReady Linux Builder for x86_64 and packages related to redhat/mingw-glib2.

3

What is the main security issue addressed in RHSA-2026:49512?

The main security issue in RHSA-2026:49512 is a buffer underflow vulnerability in GLib.

4

How do I fix RHSA-2026:49512?

To fix RHSA-2026:49512, update the affected GLib packages to their latest versions as recommended by Red Hat.

5

What is the potential impact of exploiting RHSA-2026:49512?

Exploiting RHSA-2026:49512 could lead to a path traversal vulnerability, potentially allowing unauthorized access to files.

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