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vuln-cve/data/2026/96xxx/CVE-2026-96636.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-96636",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-09-23T14:35:50.130Z",
"datePublished": "2026-10-21T21:05:20.850Z",
"dateUpdated": "2026-10-30T16:08:33.388Z"
},
"containers": {
"cna": {
"title": "Pillow: Decompression-bomb protection bypass via multi-frame seek() in MPO and DCX (MpoImageFile.seek / DcxImageFile.seek)",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-400",
"lang": "en",
"description": "CWE-400: Uncontrolled Resource Consumption",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-409",
"lang": "en",
"description": "CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/python-pillow/Pillow/security/advisories/GHSA-p8hx-v2p6-rp84",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/python-pillow/Pillow/security/advisories/GHSA-p8hx-v2p6-rp84"
},
{
"name": "https://github.com/python-pillow/Pillow/pull/10011",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/python-pillow/Pillow/pull/10011"
},
{
"name": "https://github.com/python-pillow/Pillow/commit/f1acfc54c53502948d0d14121872061df931db48",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/python-pillow/Pillow/commit/f1acfc54c53502948d0d14121872061df931db48"
},
{
"name": "https://github.com/python-pillow/Pillow/releases/tag/13.0.0",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/python-pillow/Pillow/releases/tag/13.0.0"
}
],
"affected": [
{
"vendor": "python-pillow",
"product": "Pillow",
"versions": [
{
"version": "< 13.0.0",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-10-21T21:05:20.850Z"
},
"descriptions": [
{
"lang": "en",
"value": "Pillow is a Python imaging library. Prior to 13.0.0, MpoImageFile.seek() and DcxImageFile.seek() reparse later MPO or DCX frames and replace self._size without rerunning Image._decompression_bomb_check(). A crafted multi-frame image can use a tiny first frame to pass Image.open() and then declare an over-limit later frame. Normal frame iteration through seek(), load(), or ImageSequence.Iterator can decode that frame and commit hundreds of megabytes or more, causing memory-exhaustion denial of service. This issue is fixed in version 13.0.0."
}
],
"source": {
"advisory": "GHSA-p8hx-v2p6-rp84",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/python-pillow/Pillow/security/advisories/GHSA-p8hx-v2p6-rp84",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-10-30T16:08:27.291257Z",
"id": "CVE-2026-96636",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-10-30T16:08:33.388Z"
}
}
]
}
}