Vulnerability in GNOME Glib
CVE-2026-58014
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.007 (52.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 52nd percentile — 52.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.007 · change: +0.004
Affected products
- GNOME Glib — versions 0
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8 — versions 0:2.70.1-9.el8_10
- Red Hat Enterprise Linux 9 — versions 0:2.68.4-19.el9_8.9
- Red Hat Hardened Images
- Red Hat Openshift Container Platform 4
- Red Hat Enterprise Linux — versions 6.0, 7.0, 8.0
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-58014 (vdb-entry, Vendor Advisory)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Third Party Advisory, Issue Tracking)
- gitlab.gnome.org/GNOME/glib/-/issues/3930 (Exploit, Third Party Advisory, Issue Tracking)
- access.redhat.com/errata/RHSA-2026:49512 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:55440 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:57015 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:58981 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:61766 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:61783 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:63135 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-58014?
- CVE-2026-58014 is a high-severity vulnerability in GNOME Glib, classified under Off-by-one Error. CVSS score: 7.3/10. Published 2026-06-30.
- How severe is CVE-2026-58014?
- High severity. CVSS v3 base score is 7.3 out of 10.