CVE-2026-56365
Full vulnerability record from the local CVENow database.
Description
ImageMagick before 7.1.2-19 contains a memory leak vulnerability in the PNG encoder when writing MNG images. Attackers can trigger the encoder failure condition to exhaust memory resources and cause denial of service.
Severity
MEDIUM
CVSS score
6.3
(v4.0)
Vulnerability status
Analyzed
Source identifier
Published
2026-06-30 23:17:31.527000
Last modified
2026-10-29 21:17:24.750000
View original CVE JSON
{
"id": "CVE-2026-56365",
"sourceIdentifier": "[email protected]",
"published": "2026-06-30T23:17:31.527",
"lastModified": "2026-10-29T21:17:24.750",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "ImageMagick before 7.1.2-19 contains a memory leak vulnerability in the PNG encoder when writing MNG images. Attackers can trigger the encoder failure condition to exhaust memory resources and cause denial of service."
},
{
"lang": "es",
"value": "ImageMagick anterior a la versión 7.1.2-19 contiene una vulnerabilidad de fuga de memoria en el codificador PNG al escribir imágenes MNG. Los atacantes pueden activar la condición de fallo del codificador para agotar los recursos de memoria y causar denegación de servicio."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "ImageMagick",
"product": "ImageMagick",
"defaultStatus": "unaffected",
"versions": [
{
"version": "7.0.0",
"lessThan": "7.1.2-19",
"versionType": "semver",
"status": "affected"
},
{
"version": "7.1.2-19",
"versionType": "semver",
"status": "unaffected"
}
]
},
{
"vendor": "ImageMagick",
"product": "ImageMagick",
"defaultStatus": "unaffected",
"versions": [
{
"version": "0",
"lessThan": "6.9.13-44",
"versionType": "semver",
"status": "affected"
},
{
"version": "6.9.13-44",
"versionType": "semver",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV40": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "4.0",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"attackRequirements": "PRESENT",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnAvailabilityImpact": "LOW",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"exploitMaturity": "NOT_DEFINED",
"confidentialityRequirement": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"availabilityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED"
}
}
],
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
"baseScore": 3.7,
"baseSeverity": "LOW",
"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "LOW"
},
"exploitabilityScore": 2.2,
"impactScore": 1.4
},
{
"source": "[email protected]",
"type": "Primary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "LOW"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-07-01T13:16:02.735899Z",
"id": "CVE-2026-56365",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-401"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.9.13-44",
"matchCriteriaId": "FEBAB6BF-AFEC-4D29-95E8-88C4585C9896"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*",
"versionStartIncluding": "7.0.0-0",
"versionEndExcluding": "7.1.2-19",
"matchCriteriaId": "80D20334-B25F-479D-A411-DBD1364D303C"
}
]
}
]
}
],
"references": [
{
"url": "https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-x928-4434-crqj",
"source": "[email protected]",
"tags": [
"Vendor Advisory"
]
},
{
"url": "https://www.vulncheck.com/advisories/imagemagick-memory-leak-in-png-encoder-via-mng-image-writing",
"source": "[email protected]",
"tags": [
"Third Party Advisory"
]
}
]
}