ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a heap buffer over-read vulnerability occurs when processing an image with small dimension using the -wavelet-denoise operator. Versions 7.1.2-15 and 6.9.13-40 contain a patch.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27798.json",
"cwe_ids": [
"CWE-125",
"CWE-126"
],
"cna_assigner": "GitHub_M"
}{
"versions": [
{
"introduced": "0"
},
{
"fixed": "14.10.3"
}
]
}"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-27798.json"
"2026-04-18T10:39:46Z"
[
{
"deprecated": false,
"signature_type": "Line",
"digest": {
"line_hashes": [
"233228203820235390524809354545571056456",
"126765669839663617276067452029294619468",
"147879829091457431085177681874948678994",
"325112121001481918285286318175737549592"
],
"threshold": 0.9
},
"target": {
"file": "MagickCore/visual-effects.c"
},
"source": "https://github.com/imagemagick/imagemagick/commit/0377e60b3c0d766bd7271221c95d9ee54f6a3738",
"signature_version": "v1",
"id": "CVE-2026-27798-3ba2ea34"
},
{
"deprecated": false,
"signature_type": "Function",
"digest": {
"function_hash": "111380127914624178016949977821639267545",
"length": 5321.0
},
"target": {
"file": "MagickCore/visual-effects.c",
"function": "WaveletDenoiseImage"
},
"source": "https://github.com/imagemagick/imagemagick/commit/0377e60b3c0d766bd7271221c95d9ee54f6a3738",
"signature_version": "v1",
"id": "CVE-2026-27798-6dd7bf62"
}
]