CVE-2026-96655
Full vulnerability record from the local CVENow database.
Description
Plex Media Server before 1.43.3.10861 allows an authenticated user to request arbitrary internal or external addresses via the '/video/:/transcode/universal' path parameter.
Severity
MEDIUM
CVSS score
5.3
(v4.0)
Vulnerability status
Analyzed
Source identifier
9119a7d8-5eab-497f-8521-727c672e3725
Published
2026-09-23 17:17:23.677000
Last modified
2026-10-21 13:09:29.830000
View original CVE JSON
{
"id": "CVE-2026-96655",
"sourceIdentifier": "9119a7d8-5eab-497f-8521-727c672e3725",
"published": "2026-09-23T17:17:23.677",
"lastModified": "2026-10-21T13:09:29.830",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Plex Media Server before 1.43.3.10861 allows an authenticated user to request arbitrary internal or external addresses via the '/video/:/transcode/universal' path parameter."
}
],
"affected": [
{
"source": "9119a7d8-5eab-497f-8521-727c672e3725",
"affectedData": [
{
"vendor": "Plex",
"product": "Media Server",
"defaultStatus": "unknown",
"versions": [
{
"version": "0",
"lessThan": "1.43.3.10861",
"versionType": "custom",
"status": "affected"
},
{
"version": "1.43.3.10861",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV40": [
{
"source": "9119a7d8-5eab-497f-8521-727c672e3725",
"type": "Secondary",
"cvssData": {
"version": "4.0",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/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": 5.3,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "LOW",
"vulnIntegrityImpact": "NONE",
"vulnAvailabilityImpact": "NONE",
"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": "9119a7d8-5eab-497f-8521-727c672e3725",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 2.8,
"impactScore": 1.4
}
],
"ssvcV203": [
{
"source": "9119a7d8-5eab-497f-8521-727c672e3725",
"ssvcData": {
"timestamp": "2026-09-14T18:23:48.400949Z",
"id": "CVE-2026-96655",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-10-20T00:00:00+00:00",
"id": "CVE-2026-96655",
"options": [
{
"exploitation": "active"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
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],
"role": "CISA Coordinator",
"version": "2.0.3"
}
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]
},
"cisaExploitAdd": "2026-10-20",
"cisaActionDue": "2026-11-03",
"cisaRequiredAction": "Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.",
"cisaVulnerabilityName": "Plex Media Server Server-Side Request Forgery (SSRF) Vulnerability",
"weaknesses": [
{
"source": "9119a7d8-5eab-497f-8521-727c672e3725",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-918"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:plex:media_server:*:*:*:*:*:*:*:*",
"versionEndExcluding": "1.43.3.10861",
"matchCriteriaId": "4C230270-5EBA-476B-84EE-59764545E0FD"
}
]
}
]
}
],
"references": [
{
"url": "https://forums.plex.tv/t/plex-media-server/30447/711",
"source": "9119a7d8-5eab-497f-8521-727c672e3725",
"tags": [
"Release Notes"
]
},
{
"url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-266-01.json",
"source": "9119a7d8-5eab-497f-8521-727c672e3725",
"tags": [
"Third Party Advisory"
]
},
{
"url": "https://www.cve.org/CVERecord?id=CVE-2026-96655",
"source": "9119a7d8-5eab-497f-8521-727c672e3725",
"tags": [
"Third Party Advisory",
"VDB Entry"
]
},
{
"url": "https://zmain.info/blog/plex2shell",
"source": "9119a7d8-5eab-497f-8521-727c672e3725",
"tags": [
"Third Party Advisory"
]
},
{
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-96655",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"tags": [
"US Government Resource"
]
}
]
}