CVE-2026-58011
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.47%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.47% probability · 40th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- gnome/glib · redhat/enterprise linux
- Source
- secalert@redhat.com
References
- https://access.redhat.com/errata/RHSA-2026:49512
- https://access.redhat.com/errata/RHSA-2026:55440
- https://access.redhat.com/errata/RHSA-2026:57015
- https://access.redhat.com/errata/RHSA-2026:58981
- https://access.redhat.com/errata/RHSA-2026:61766
- https://access.redhat.com/errata/RHSA-2026:61783
- https://access.redhat.com/errata/RHSA-2026:63135
- https://access.redhat.com/errata/RHSA-2026:63138
- https://access.redhat.com/errata/RHSA-2026:63140
- https://access.redhat.com/errata/RHSA-2026:65762
- https://access.redhat.com/errata/RHSA-2026:65763
- https://access.redhat.com/errata/RHSA-2026:65767
- https://access.redhat.com/errata/RHSA-2026:65768
- https://access.redhat.com/errata/RHSA-2026:65769
- https://access.redhat.com/errata/RHSA-2026:65770
- https://access.redhat.com/errata/RHSA-2026:65771
- https://access.redhat.com/errata/RHSA-2026:65773
- https://access.redhat.com/errata/RHSA-2026:66018
- https://access.redhat.com/security/cve/CVE-2026-58011Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2492245Issue Tracking, Third Party Advisory
- https://gitlab.gnome.org/GNOME/glib/-/issues/3917Exploit, Issue Tracking, Vendor Advisory
- https://gitlab.gnome.org/GNOME/glib/-/work_items/3917Exploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.