Medium [CVE-2026-58011] Glib: out-of-bounds read in glib/gdatetime.c:g_date_time_get_ymd via invalid gdatetime
This medium-severity Red Hat Linux advisory covers CVE-2026-58011 affecting Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6.
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Summary
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.
Affected products named by the advisory: Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 10; Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; and 1 more.
Affected products named by the advisory: Red Hat Enterprise Linux 9.
- GLib before 2.86.5
- GLib before 2.88.1
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
- 2.86.5
- 2.88.1
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation
Upgrade to a fixed release: 2.86.5, 2.88.1. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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