ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below 7.1.2-19, the JXL encoder has an heap write overflow when a user specifies that the image should be encoded as 16 bit floats. This issue has been fixed in version 7.1.2-19.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-122"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40183.json"
}{
"extracted_events": [
{
"original_tag": "14.12.0",
"range": [
{
"fixed": "158db3ad7f38ab3023f5dce59fb17a0f27a8cd43"
}
],
"source": "REFERENCES_TAG"
}
]
}
{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "7.1.2-19"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"original_tag": "7.1.2-19",
"range": [
{
"fixed": "9fbd2b79450e930edb95e8158d412e57a7b27e83"
}
],
"source": "REFERENCES_TAG"
},
{
"cpe": "cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "7.1.2-19"
}
],
"source": "CPE_RANGE"
}
]
}