Review reviewHigh

CVE-2026-58014

GNOME GLib, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 10

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.

CVSS
8.6
EPSS
0.29%
21.3% percentile
CISA KEV
Not listed
Published
2026.06.30
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.29%
Technical severityCVSS 8.6

Vulnerability overview

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.

Affected product and versions

Product
GNOME GLib, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 10
Affected versions
< 2.88.1, 6.0, 7.0, 8.0, 9.0, 10.0
Fixed versions
2.88.1

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that GNOME GLib, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 10 and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
CWE
CWE-193
CVE-2026-58014 — GNOME GLib, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 10 | SECUFOCUS NOW