ImageMagick is free and open-source software used for editing and manipulating digital images. In versions below both 7.1.2-19 and 6.9.13-44, an integer overflow in the despeckle operation causes a heap buffer overflow on 32-bit builds that will result in an out of bounds write. This issue has been fixed in versions 6.9.13-44 and 7.1.2-19.
{
"cwe_ids": [
"CWE-190",
"CWE-787"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34238.json",
"cna_assigner": "GitHub_M",
"unresolved_ranges": [
{
"extracted_events": [
{
"fixed": "6.9.13-44"
}
],
"source": "AFFECTED_FIELD"
}
]
}{
"source": "REFERENCES"
}
{
"cpe": "cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "7.0.0-0"
},
{
"fixed": "7.1.2-19"
}
],
"source": [
"CPE_RANGE",
"REFERENCES"
]
}
{
"cpe": "cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "6.9.13-44"
}
],
"source": "CPE_RANGE"
}
"2026-08-12T15:33:35Z"
[
{
"id": "CVE-2026-34238-920ddeaa",
"deprecated": false,
"signature_type": "Line",
"signature_version": "v1",
"digest": {
"threshold": 0.9,
"line_hashes": [
"114101022061893962509505295829508716294",
"238727376341863101741753165717822990123",
"72987615908777838831117339410886659645",
"54274767765437427606188752123041717828"
]
},
"source": "https://github.com/imagemagick/imagemagick/commit/bcd8519c70ecd9ebbc180920f2cf97b267d1f440",
"target": {
"file": "MagickCore/effect.c"
}
},
{
"id": "CVE-2026-34238-aa3c5bd7",
"deprecated": false,
"signature_type": "Function",
"signature_version": "v1",
"digest": {
"length": 3864.0,
"function_hash": "148264205199189912082100187310949954382"
},
"source": "https://github.com/imagemagick/imagemagick/commit/bcd8519c70ecd9ebbc180920f2cf97b267d1f440",
"target": {
"function": "DespeckleImage",
"file": "MagickCore/effect.c"
}
}
]
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34238.json"