GNOME GLib prior 2.86.5/2.88.1 glib/gdatetime.c g_date_time_get_ymd out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k1.98

Summaryinfo

A vulnerability, which was classified as critical, has been found in GNOME GLib. This issue affects the function g_date_time_get_ymd of the file glib/gdatetime.c. This manipulation causes out-of-bounds. This vulnerability is handled as CVE-2026-58011. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in GNOME GLib. Affected by this vulnerability is the function g_date_time_get_ymd of the file glib/gdatetime.c. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at access.redhat.com. This vulnerability is known as CVE-2026-58011 since 06/26/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 2.86.5 or 2.88.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-40313). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.8

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (redhat): 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: GLib 2.86.5/2.88.1

Timelineinfo

06/26/2026 CVE reserved
06/30/2026 +4 days Advisory disclosed
06/30/2026 +0 days VulDB entry created
06/30/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: gnome.org

Advisory: 3917
Status: Confirmed

CVE: CVE-2026-58011 (🔒)
GCVE (CVE): GCVE-0-2026-58011
GCVE (VulDB): GCVE-100-374851
EUVD: 🔒

Entryinfo

Created: 06/30/2026 18:00
Updated: 06/30/2026 19:24
Changes: 06/30/2026 18:00 (65), 06/30/2026 19:24 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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