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CVE-2026-58014

Glib: off-by-one error in glib/gkeyfile.c via "g_key_file_get_locale_string_list"

High7.3EPSS 0.56%
Published
Updated
Reserved
Assigned by
redhat

Description

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.

Scores

CVSS scores of CVE-2026-58014, by who scored it
Scored byCVSSScoreVector
redhatCNA (assigner)3.1High7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
NVDNVD · Modified3.1High8.6CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
EPSS (exploitation in 30 days)
0.56% · top 53% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: poc · Automatable: yes · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.3.

Weakness

Affected products

What to do

Workaround: To mitigate this vulnerability, implement input validation to sanitize untrusted key files (such as .desktop or .ini files), specifically rejecting or stripping empty values before calling g_key_file_get_locale_string_list(). Alternatively, restricting the application to only load key files from trusted sources will completely neutralize this issue.

References (86)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .