High severity · published Jun 30, 2026
CVE-2026-58011
Glib: out-of-bounds read in glib/gdatetime.c:g_date_time_get_ymd via invalid gdatetime
7.5
CVSS
0.5%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 41% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CM
Cert Manager support for Red Hat OpenShift release 1.17 · Red Hat
All versions, or not specified · source: vendor
CM
Cert Manager support for Red Hat OpenShift release 1.18 · Red Hat
All versions, or not specified · source: vendor
CM
Cert Manager support for Red Hat OpenShift release 1.19 · Red Hat
All versions, or not specified · source: vendor
CM
Cert Manager support for Red Hat OpenShift release 1.20 · Red Hat
All versions, or not specified · source: vendor
GL
GLib · GNOME
before 2.86.5; before 2.88.1 · source: vendor, NVD
RH
Red Hat AI Inference Server 3.2 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat AI Inference Server 3.5 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Discovery 2 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 10 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 10.0 Extended Update Support · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 6 · Red Hat
All versions, or not specified · source: vendor
RH
Red Hat Enterprise Linux 7 Extended Lifecycle Support · Red Hat
All versions, or not specified · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-58011
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-58011
vendor-advisory
https://access.redhat.com/errata/RHSA-2026:49512
vendor-advisory
https://access.redhat.com/errata/RHSA-2026:55440
vendor-advisory
https://access.redhat.com/errata/RHSA-2026:57015
vendor-advisory
https://access.redhat.com/errata/RHSA-2026:58981
vendor-advisory
https://access.redhat.com/errata/RHSA-2026:61766
vendor-advisory
https://access.redhat.com/errata/RHSA-2026:61783
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