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Vulnerability · Published Jun 30, 2026 · Assigned by redhat

CVE-2026-58014Glib: off-by-one error in glib/gkeyfile.c via "g_key_file_get_locale_string_list"

High 7.3

In plain English

A high-severity security flaw in GLib from GNOME. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.3High
Exploit odds (30 days)0.6%top 53.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A flaw was found in GLib. An off-by-one error can occur in the g_key_file_get_locale_string_list function in the gkeyfile.c file when loading a key file with an empty value. This flaw can cause an out-of-bounds access of 1 byte or a denial of service when the out-of-bounds access crosses a page boundary.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:10glib22.80.4-12.el10_2.21ALSA-2026:57015
AlmaLinux:8glib22.56.4-177.el8_10ALSA-2026:61766
AlmaLinux:9glib22.68.4-19.el9_8.9ALSA-2026:55440
AlmaLinux:10glib2-devel2.80.4-12.el10_2.21ALSA-2026:57015
AlmaLinux:8glib2-devel2.56.4-177.el8_10ALSA-2026:61766
AlmaLinux:9glib2-devel2.68.4-19.el9_8.9ALSA-2026:55440
AlmaLinux:10glib2-doc2.80.4-12.el10_2.21ALSA-2026:57015
AlmaLinux:8glib2-doc2.56.4-177.el8_10ALSA-2026:61766
AlmaLinux:9glib2-doc2.68.4-19.el9_8.9ALSA-2026:55440
AlmaLinux:8glib2-fam2.56.4-177.el8_10ALSA-2026:61766
AlmaLinux:10glib2-static2.80.4-12.el10_2.21ALSA-2026:57015
AlmaLinux:8glib2-static2.56.4-177.el8_10ALSA-2026:61766
AlmaLinux:9glib2-static2.68.4-19.el9_8.9ALSA-2026:55440
AlmaLinux:10glib2-tests2.80.4-12.el10_2.21ALSA-2026:57015
AlmaLinux:8glib2-tests2.56.4-177.el8_10ALSA-2026:61766
AlmaLinux:9glib2-tests2.68.4-19.el9_8.9ALSA-2026:55440
AlmaLinux:8mingw32-glib22.70.1-9.el8_10ALSA-2026:49512
AlmaLinux:8mingw32-glib2-static2.70.1-9.el8_10ALSA-2026:49512
AlmaLinux:8mingw64-glib22.70.1-9.el8_10ALSA-2026:49512
AlmaLinux:8mingw64-glib2-static2.70.1-9.el8_10ALSA-2026:49512
Debian:12glib2.0no fix listedDEBIAN-CVE-2026-58014
Debian:13glib2.02.84.4-3~deb13u4DEBIAN-CVE-2026-58014
Debian:14glib2.02.88.1-2DEBIAN-CVE-2026-58014
Rocky Linux:10glib20:2.80.4-12.el10_2.21RLSA-2026:57015
Rocky Linux:8glib20:2.56.4-177.el8_10RLSA-2026:61766
Rocky Linux:9glib20:2.68.4-19.el9_8.9RLSA-2026:55440
Rocky Linux:8mingw-glib20:2.70.1-9.el8_10RLSA-2026:49512
Ubuntu:22.04:LTSglib2.02.72.4-0ubuntu2.10UBUNTU-CVE-2026-58014
Ubuntu:22.04:LTSglib2.02.72.4-0ubuntu2.10USN-8794-1
Ubuntu:24.04:LTSglib2.02.80.0-6ubuntu3.9UBUNTU-CVE-2026-58014
Ubuntu:24.04:LTSglib2.02.80.0-6ubuntu3.9USN-8794-1
Ubuntu:25.10glib2.0no fix listedUBUNTU-CVE-2026-58014
Ubuntu:26.04:LTSglib2.02.88.0-1ubuntu0.1USN-8794-1
Ubuntu:26.04:LTSglib2.02.88.0-1ubuntu0.1UBUNTU-CVE-2026-58014

Affected products (as reported)

VendorProductVersions
GNOME GLib 0 – before 2.88.1
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support see references
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On see references
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support see references
Red Hat Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On see references
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service see references
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions see references
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support see references
Red Hat Red Hat OpenShift Container Platform 4.12 see references
Red Hat Red Hat OpenShift Container Platform 4.13 see references
Red Hat Red Hat OpenShift Container Platform 4.14 see references
Red Hat Red Hat OpenShift Container Platform 4.15 see references
Red Hat Red Hat OpenShift Container Platform 4.16 see references
Red Hat Red Hat OpenShift Container Platform 4.17 see references
Red Hat Red Hat OpenShift Container Platform 4.18 see references
Red Hat Red Hat OpenShift Container Platform 4.22 see references
Red Hat Cert Manager support for Red Hat OpenShift release 1.17 see references
Red Hat Cert Manager support for Red Hat OpenShift release 1.17 see references
Red Hat Cert Manager support for Red Hat OpenShift release 1.17 see references
Red Hat Cert Manager support for Red Hat OpenShift release 1.17 see references
Red Hat Cert Manager support for Red Hat OpenShift release 1.17 see references

Weakness: CWE-193 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References