CVE-2026-58011
Glib: out-of-bounds read in glib/gdatetime.c:g_date_time_get_ymd via invalid gdatetime
CVSS Score
6.5
EPSS Score
0.8%
EPSS Percentile
55th
A flaw was found in GLib. An out-of-bounds read of only 2 bytes can occur in the g_date_time_get_ymd function in the glib/gdatetime.c file when an invalid GDateTime object produced by the g_date_time_add_full function is processed. This flaw can corrupt the date output and potentially cause logic errors that may lead to a denial of service.
| CWE | CWE-125 |
| Vendor | gnome |
| Product | glib |
| Published | Jun 30, 2026 |
| Last Updated | Sep 28, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low
Affected Versions
GNOME / GLib
0 < 2.86.5 0 < 2.88.1
Red Hat / Red Hat Enterprise Linux 10
All versions affected Red Hat / Red Hat Enterprise Linux 10.0 Extended Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 7 Extended Lifecycle Support
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8
All versions affected Red Hat / Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
All versions affected Red Hat / Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
All versions affected Red Hat / Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On
All versions affected Red Hat / Red Hat Enterprise Linux 8.8 Telecommunications Update Service
All versions affected Red Hat / Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
All versions affected Red Hat / Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions
All versions affected Red Hat / Red Hat Enterprise Linux 9.6 Extended Update Support
All versions affected Red Hat / Cert Manager support for Red Hat OpenShift release 1.19
All versions affected Red Hat / Cert Manager support for Red Hat OpenShift release 1.19
All versions affected Red Hat / Cert Manager support for Red Hat OpenShift release 1.19
All versions affected Red Hat / Cert Manager support for Red Hat OpenShift release 1.19
All versions affected Red Hat / Cert Manager support for Red Hat OpenShift release 1.20
All versions affected Red Hat / Cert Manager support for Red Hat OpenShift release 1.20
All versions affected Red Hat / Cert Manager support for Red Hat OpenShift release 1.20
All versions affected Red Hat / Cert Manager support for Red Hat OpenShift release 1.20
All versions affected Red Hat / Cert Manager support for Red Hat OpenShift release 1.20
All versions affected Red Hat / Cert Manager support for Red Hat OpenShift release 1.20
All versions affected Red Hat / Cert Manager support for Red Hat OpenShift release 1.20
All versions affected Red Hat / Red Hat Discovery 2
All versions affected Red Hat / Red Hat Discovery 2
All versions affected Red Hat / Red Hat Update Infrastructure 5
All versions affected Red Hat / Red Hat Update Infrastructure 5
All versions affected Red Hat / Red Hat Update Infrastructure 5
All versions affected Red Hat / Red Hat Update Infrastructure 5
All versions affected Red Hat / Red Hat Update Infrastructure 5
All versions affected Red Hat / Red Hat Update Infrastructure 5
All versions affected Red Hat / Red Hat Update Infrastructure 5
All versions affected Red Hat / Red Hat Update Infrastructure 5
All versions affected Red Hat / Red Hat Enterprise Linux 10
All versions affected Red Hat / Red Hat Enterprise Linux 6
All versions affected Red Hat / Red Hat Enterprise Linux 9
All versions affected Red Hat / Red Hat Hardened Images
All versions affected References
access.redhat.com: https://access.redhat.com/errata/RHSA-2026:49512 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:55440 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:57015 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:58981 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:61766 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:61783 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:63135 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:63138 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:63140 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:65762 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:65763 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:65767 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:65768 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:65769 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:65770 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:65771 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:65773 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:66018 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:72394 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:72395 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:72399 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:72470 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:72475 access.redhat.com: https://access.redhat.com/errata/RHSA-2026:72476 access.redhat.com: https://access.redhat.com/security/cve/CVE-2026-58011 bugzilla.redhat.com: https://bugzilla.redhat.com/show_bug.cgi?id=2492245 gitlab.gnome.org: https://gitlab.gnome.org/GNOME/glib/-/issues/3917 gitlab.gnome.org: https://gitlab.gnome.org/GNOME/glib/-/work_items/3917
Credits
Red Hat would like to thank linhlhq for reporting this issue.