ImageMagick before 7.1.2-15 and 6.9.13-40 contains a heap use-after-free in the meta coder: when memory allocation fails, a single byte is written to a stale pointer. Remote attackers can trigger it by processing specially crafted image files, causing a denial of service.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56376.json",
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-416"
],
"unresolved_ranges": [
{
"extracted_events": [
{
"fixed": "6.9.13-40"
}
],
"source": "AFFECTED_FIELD"
}
]
}{
"cpe": "cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "7.1.2-15"
},
{
"introduced": "7.0.0-0"
}
],
"source": [
"AFFECTED_FIELD",
"CPE_RANGE"
]
}{
"cpe": "cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "6.9.13-40"
}
],
"source": "CPE_RANGE"
}