A flaw was found in GLib. An off-by-one error can occur in the gvstupleis_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.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58010.json",
"cna_assigner": "redhat",
"cwe_ids": [
"CWE-126"
]
}{
"source": [
"CPE_RANGE",
"CPE_STRING"
],
"cpe": [
"cpe:2.3:a:gnome:glib:*:*:*:*:*:*:*:*",
"cpe:2.3:a:gnome:glib:2.88.0:*:*:*:*:*:*:*"
],
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "2.86.5"
},
{
"introduced": "2.88.0"
},
{
"last_affected": "2.88.0"
}
]
}{
"source": [
"CPE_RANGE",
"CPE_STRING"
],
"cpe": [
"cpe:2.3:a:gnome:glib:*:*:*:*:*:*:*:*",
"cpe:2.3:a:gnome:glib:2.88.0:*:*:*:*:*:*:*"
],
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "2.86.5"
},
{
"introduced": "2.88.0"
},
{
"last_affected": "2.88.0"
}
]
}