A use-after-free flaw was found in X.Org and Xwayland. The root cursor is referenced in the X server as a global variable. If a client frees the root cursor, the internal reference points to freed memory and causes a use-after-free.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/26xxx/CVE-2025-26594.json",
"cna_assigner": "redhat",
"cwe_ids": [
"CWE-416"
]
}{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "21.1.16"
},
{
"introduced": "22.0.0"
},
{
"fixed": "24.1.6"
}
],
"source": "AFFECTED_FIELD"
}