CVE-2026-58010

medium

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.

References

https://gitlab.gnome.org/GNOME/glib/-/issues/3915

https://bugzilla.redhat.com/show_bug.cgi?id=2492243

https://access.redhat.com/security/cve/CVE-2026-58010

Details

Source: Mitre, NVD

Published: 2026-06-30

Updated: 2026-06-30

Risk Information

CVSS v2

Base Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Severity: Medium

EPSS

EPSS: 0.00264