A flaw was found in GLib. An off-by-one error can occur in the gvs_tuple_is_normal function in the glib/gvariant-serialiser.c file when doing an alignment padding check because the bounds check uses > instead of >=, causing an out-of-bounds read of only 1 byte. This issue can cause a minor information disclosure of 1 byte and a denial of service when the out-of-bounds read crosses a page boundary.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable yes

Technical Impact partial

Affected Vendors & Products

Vendors Products
Gnome
  • Glib
Redhat
  • Cert Manager
  • Discovery
  • Enterprise Linux
  • Enterprise Linux Eus
  • Hardened Images
  • Hummingbird
  • Rhel Aus
  • Rhel E4s
  • Rhel Els
  • Rhel Eus
  • Rhel Eus Long Life
  • Rhel Tus
  • Rhui

Configuration 1 [-]

OR cpe:2.3:a:gnome:glib:*:*:*:*:*:*:*:*
cpe:2.3:a:gnome:glib:2.88.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*

No data.

References
Link Providers
https://access.redhat.com/errata/RHSA-2026:49512 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2026:55440 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2026:57015 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2026:58981 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2026:61766 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2026:61783 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2026:63135 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2026:63138 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2026:63140 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2026:65762 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2026:65763 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2026:65767 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2026:65768 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2026:65769 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2026:65770 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2026:65771 cve-icon cve-icon
https://access.redhat.com/errata/RHSA-2026:65773 cve-icon cve-icon
https://access.redhat.com/security/cve/CVE-2026-58010 cve-icon cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=2492243 cve-icon cve-icon
https://gitlab.gnome.org/GNOME/glib/-/issues/3915 cve-icon cve-icon
History

Wed, 09 Sep 2026 08:00:00 +0000

Type Values Removed Values Added
First Time appeared Redhat enterprise Linux Eus
Redhat rhel Eus
Redhat rhel Tus
CPEs cpe:/a:redhat:rhel_eus:9.6::appstream
cpe:/a:redhat:rhel_eus:9.6::crb
cpe:/o:redhat:enterprise_linux_eus:10.0
cpe:/o:redhat:rhel_aus:8.6::baseos
cpe:/o:redhat:rhel_e4s:8.8::baseos
cpe:/o:redhat:rhel_eus:9.6::baseos
cpe:/o:redhat:rhel_eus_long_life:8.6::baseos
cpe:/o:redhat:rhel_tus:8.8::baseos
Vendors & Products Redhat enterprise Linux Eus
Redhat rhel Eus
Redhat rhel Tus
References

Wed, 09 Sep 2026 04:30:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhel E4s
Redhat rhel Els
CPEs cpe:/o:redhat:enterprise_linux:7 cpe:/a:redhat:rhel_e4s:9.2::appstream
cpe:/a:redhat:rhel_e4s:9.4::appstream
cpe:/o:redhat:rhel_e4s:9.2::baseos
cpe:/o:redhat:rhel_e4s:9.4::baseos
cpe:/o:redhat:rhel_els:7
Vendors & Products Redhat rhel E4s
Redhat rhel Els
References

Wed, 09 Sep 2026 03:15:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhel Aus
Redhat rhel Eus Long Life
CPEs cpe:/o:redhat:rhel_aus:8.4::baseos
cpe:/o:redhat:rhel_eus_long_life:8.4::baseos
Vendors & Products Redhat rhel Aus
Redhat rhel Eus Long Life
References

Tue, 08 Sep 2026 23:00:00 +0000

Type Values Removed Values Added
First Time appeared Redhat cert Manager
CPEs cpe:/a:redhat:cert_manager:1.19::el9
Vendors & Products Redhat cert Manager
References

Tue, 01 Sep 2026 02:45:00 +0000

Type Values Removed Values Added
First Time appeared Redhat discovery
CPEs cpe:/a:redhat:discovery:2::el9
Vendors & Products Redhat discovery
References

Mon, 31 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
CPEs cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:8::baseos
References

Tue, 25 Aug 2026 10:00:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhui
CPEs cpe:/a:redhat:rhui:5::el9
Vendors & Products Redhat rhui
References

Wed, 19 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
CPEs cpe:/o:redhat:enterprise_linux:10.2
References

Mon, 17 Aug 2026 09:30:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:enterprise_linux:9::appstream
cpe:/a:redhat:enterprise_linux:9::crb
cpe:/o:redhat:enterprise_linux:9::baseos
References

Mon, 03 Aug 2026 05:30:00 +0000

Type Values Removed Values Added
CPEs cpe:/a:redhat:enterprise_linux:8::crb
References

Wed, 01 Jul 2026 10:30:00 +0000

Type Values Removed Values Added
First Time appeared Gnome
Gnome glib
Redhat hardened Images
Vendors & Products Gnome
Gnome glib
Redhat hardened Images

Tue, 30 Jun 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 30 Jun 2026 13:15:00 +0000

Type Values Removed Values Added
Description A flaw was found in GLib. An off-by-one error can occur in the gvs_tuple_is_normal function in the glib/gvariant-serialiser.c file when doing an alignment padding check because the bounds check uses > instead of >=, causing an out-of-bounds read of only 1 byte. This issue can cause a minor information disclosure of 1 byte and a denial of service when the out-of-bounds read crosses a page boundary.
Title Glib: buffer over-read in glib/gvariant-serialiser.c via gvs_tuple_is_normal()
First Time appeared Redhat
Redhat enterprise Linux
Redhat hummingbird
Weaknesses CWE-126
CPEs cpe:/a:redhat:hummingbird:1
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Redhat hummingbird
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L'}
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2026-06-30T12:57:15.125Z

Updated: 2026-09-09T07:45:30.506Z

Reserved: 2026-06-26T20:59:47.855Z

Link: CVE-2026-58010

cve-icon Vulnrichment

Updated: 2026-06-30T14:03:42.815Z

cve-icon NVD

Status : Modified

Published: 2026-06-30T13:19:17.067

Modified: 2026-09-09T08:17:20.417

Link: CVE-2026-58010

cve-icon Redhat

No data.