A global out-of-bounds read in the Huffman decoder of the bundled IJG JPEG libraries (dcmjpeg/libijg8, libijg12 and libijg16) of OFFIS DCMTK 3.7.0 allows an attacker to read memory beyond the extend_test[] and extend_offset[] tables, causing incorrectly decoded pixel data or a crash, via a DICOM file with a crafted JPEG stream whose Huffman table defines a difference category above 15. Huffman symbol values are not range-checked unless DCMTK is built with DCMTK_ENABLE_STRICT_HUFFMAN_TABLE_CHECK, which is disabled by default. dcmdjpeg and any application that decompresses JPEG DICOM images with DCMTK are affected. The issue is fixed in commit d6ae1bc8d5b9ae9c7300013c8c85cc2ea0fd8cf5.
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-44038.json"
[
{
"deprecated": false,
"digest": {
"line_hashes": [
"170224089103582227029923350330518948086",
"237319796681969543720267715624709924845",
"109336430897402465039660023792233558254",
"297269115982512659977221391455876890449",
"223058330846531244729124936326145813684",
"260902634031194533683468794494166464310"
],
"threshold": 0.9
},
"id": "CVE-2026-44038-13d85098",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/dcmtk/dcmtk/commit/d6ae1bc8d5b9ae9c7300013c8c85cc2ea0fd8cf5",
"target": {
"file": "dcmjpeg/libijg8/jdshuff.c"
}
},
{
"deprecated": false,
"digest": {
"line_hashes": [
"125234630022618454100880350039023633718",
"251909564100242552155886323834352600506",
"109336430897402465039660023792233558254",
"297269115982512659977221391455876890449",
"159818325274635626437917651130140710710",
"326263968123480069512585931305965911176"
],
"threshold": 0.9
},
"id": "CVE-2026-44038-237e7ebe",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/dcmtk/dcmtk/commit/d6ae1bc8d5b9ae9c7300013c8c85cc2ea0fd8cf5",
"target": {
"file": "dcmjpeg/libijg12/jdphuff.c"
}
},
{
"deprecated": false,
"digest": {
"function_hash": "159991825021739021990634430338027037038",
"length": 1385
},
"id": "CVE-2026-44038-3441313d",
"signature_type": "Function",
"signature_version": "v1",
"source": "https://github.com/dcmtk/dcmtk/commit/d6ae1bc8d5b9ae9c7300013c8c85cc2ea0fd8cf5",
"target": {
"file": "dcmjpeg/libijg12/jdlhuff.c",
"function": "decode_mcus"
}
},
{
"deprecated": false,
"digest": {
"function_hash": "159991825021739021990634430338027037038",
"length": 1385
},
"id": "CVE-2026-44038-4e6f4031",
"signature_type": "Function",
"signature_version": "v1",
"source": "https://github.com/dcmtk/dcmtk/commit/d6ae1bc8d5b9ae9c7300013c8c85cc2ea0fd8cf5",
"target": {
"file": "dcmjpeg/libijg8/jdlhuff.c",
"function": "decode_mcus"
}
},
{
"deprecated": false,
"digest": {
"function_hash": "50250525439352053178242379481829429016",
"length": 1232
},
"id": "CVE-2026-44038-516dc59b",
"signature_type": "Function",
"signature_version": "v1",
"source": "https://github.com/dcmtk/dcmtk/commit/d6ae1bc8d5b9ae9c7300013c8c85cc2ea0fd8cf5",
"target": {
"file": "dcmjpeg/libijg16/jdphuff.c",
"function": "decode_mcu_DC_first"
}
},
{
"deprecated": false,
"digest": {
"line_hashes": [
"315774238913414956536207464918644281915",
"305154871510946020204997784587759407152",
"100697793669319324000764714276660465261",
"129788758919199506167048050571869543301",
"23325219694734154586012800198945528887"
],
"threshold": 0.9
},
"id": "CVE-2026-44038-564d95ab",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/dcmtk/dcmtk/commit/d6ae1bc8d5b9ae9c7300013c8c85cc2ea0fd8cf5",
"target": {
"file": "dcmjpeg/libijg12/jdlhuff.c"
}
},
{
"deprecated": false,
"digest": {
"function_hash": "293518764266177619031901973641757237806",
"length": 1921
},
"id": "CVE-2026-44038-6b949cba",
"signature_type": "Function",
"signature_version": "v1",
"source": "https://github.com/dcmtk/dcmtk/commit/d6ae1bc8d5b9ae9c7300013c8c85cc2ea0fd8cf5",
"target": {
"file": "dcmjpeg/libijg16/jdshuff.c",
"function": "decode_mcu"
}
},
{
"deprecated": false,
"digest": {
"function_hash": "278836621381420932542013635104149969767",
"length": 1806
},
"id": "CVE-2026-44038-6e7c8359",
"signature_type": "Function",
"signature_version": "v1",
"source": "https://github.com/dcmtk/dcmtk/commit/d6ae1bc8d5b9ae9c7300013c8c85cc2ea0fd8cf5",
"target": {
"file": "dcmjpeg/libijg12/jdshuff.c",
"function": "decode_mcu"
}
},
{
"deprecated": false,
"digest": {
"line_hashes": [
"170224089103582227029923350330518948086",
"237319796681969543720267715624709924845",
"109336430897402465039660023792233558254",
"297269115982512659977221391455876890449",
"223058330846531244729124936326145813684",
"260902634031194533683468794494166464310"
],
"threshold": 0.9
},
"id": "CVE-2026-44038-772fb356",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/dcmtk/dcmtk/commit/d6ae1bc8d5b9ae9c7300013c8c85cc2ea0fd8cf5",
"target": {
"file": "dcmjpeg/libijg12/jdshuff.c"
}
},
{
"deprecated": false,
"digest": {
"function_hash": "287681774361874935838109145641017120881",
"length": 1887
},
"id": "CVE-2026-44038-78b34320",
"signature_type": "Function",
"signature_version": "v1",
"source": "https://github.com/dcmtk/dcmtk/commit/d6ae1bc8d5b9ae9c7300013c8c85cc2ea0fd8cf5",
"target": {
"file": "dcmjpeg/libijg16/jdlhuff.c",
"function": "decode_mcus"
}
},
{
"deprecated": false,
"digest": {
"line_hashes": [
"100038949287673236790057812374518188105",
"92546057002073363474291344576667105595",
"109336430897402465039660023792233558254",
"297269115982512659977221391455876890449",
"159818325274635626437917651130140710710",
"326263968123480069512585931305965911176"
],
"threshold": 0.9
},
"id": "CVE-2026-44038-902abed2",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/dcmtk/dcmtk/commit/d6ae1bc8d5b9ae9c7300013c8c85cc2ea0fd8cf5",
"target": {
"file": "dcmjpeg/libijg16/jdphuff.c"
}
},
{
"deprecated": false,
"digest": {
"line_hashes": [
"315013473697190718544975112090498254837",
"83757381446180678670818497428230233374",
"68336538335244328378864236131607196829",
"129788758919199506167048050571869543301",
"23325219694734154586012800198945528887"
],
"threshold": 0.9
},
"id": "CVE-2026-44038-99fcead7",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/dcmtk/dcmtk/commit/d6ae1bc8d5b9ae9c7300013c8c85cc2ea0fd8cf5",
"target": {
"file": "dcmjpeg/libijg16/jdlhuff.c"
}
},
{
"deprecated": false,
"digest": {
"function_hash": "278836621381420932542013635104149969767",
"length": 1806
},
"id": "CVE-2026-44038-9edf7f2e",
"signature_type": "Function",
"signature_version": "v1",
"source": "https://github.com/dcmtk/dcmtk/commit/d6ae1bc8d5b9ae9c7300013c8c85cc2ea0fd8cf5",
"target": {
"file": "dcmjpeg/libijg8/jdshuff.c",
"function": "decode_mcu"
}
},
{
"deprecated": false,
"digest": {
"line_hashes": [
"331862017919413752948560187156897899455",
"295262371278682814622287337162486323698",
"109336430897402465039660023792233558254",
"297269115982512659977221391455876890449",
"223058330846531244729124936326145813684",
"260902634031194533683468794494166464310"
],
"threshold": 0.9
},
"id": "CVE-2026-44038-a66fdb87",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/dcmtk/dcmtk/commit/d6ae1bc8d5b9ae9c7300013c8c85cc2ea0fd8cf5",
"target": {
"file": "dcmjpeg/libijg16/jdshuff.c"
}
},
{
"deprecated": false,
"digest": {
"function_hash": "131398697852104318910022292156266009149",
"length": 1129
},
"id": "CVE-2026-44038-abd25c80",
"signature_type": "Function",
"signature_version": "v1",
"source": "https://github.com/dcmtk/dcmtk/commit/d6ae1bc8d5b9ae9c7300013c8c85cc2ea0fd8cf5",
"target": {
"file": "dcmjpeg/libijg12/jdphuff.c",
"function": "decode_mcu_DC_first"
}
},
{
"deprecated": false,
"digest": {
"line_hashes": [
"125234630022618454100880350039023633718",
"251909564100242552155886323834352600506",
"109336430897402465039660023792233558254",
"297269115982512659977221391455876890449",
"159818325274635626437917651130140710710",
"326263968123480069512585931305965911176"
],
"threshold": 0.9
},
"id": "CVE-2026-44038-dcc3874d",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/dcmtk/dcmtk/commit/d6ae1bc8d5b9ae9c7300013c8c85cc2ea0fd8cf5",
"target": {
"file": "dcmjpeg/libijg8/jdphuff.c"
}
},
{
"deprecated": false,
"digest": {
"function_hash": "131398697852104318910022292156266009149",
"length": 1129
},
"id": "CVE-2026-44038-e4f8d07d",
"signature_type": "Function",
"signature_version": "v1",
"source": "https://github.com/dcmtk/dcmtk/commit/d6ae1bc8d5b9ae9c7300013c8c85cc2ea0fd8cf5",
"target": {
"file": "dcmjpeg/libijg8/jdphuff.c",
"function": "decode_mcu_DC_first"
}
},
{
"deprecated": false,
"digest": {
"line_hashes": [
"315774238913414956536207464918644281915",
"305154871510946020204997784587759407152",
"100697793669319324000764714276660465261",
"129788758919199506167048050571869543301",
"23325219694734154586012800198945528887"
],
"threshold": 0.9
},
"id": "CVE-2026-44038-efa37dbd",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/dcmtk/dcmtk/commit/d6ae1bc8d5b9ae9c7300013c8c85cc2ea0fd8cf5",
"target": {
"file": "dcmjpeg/libijg8/jdlhuff.c"
}
}
]
"2026-10-10T07:05:55Z"