CVE-2026-53777
Full vulnerability record from the local CVENow database.
Description
Perry before 0.5.1159 contains a path traversal vulnerability that allows a malicious build server to write arbitrary content to any location writable by the running process by supplying unsanitized path components in the artifact_name field of ArtifactReady WebSocket messages. Attackers controlling the server URL can deliver traversal payloads through the artifact_name or download_path fields, causing the client to overwrite sensitive files or expose arbitrary local files to an attacker-accessible location.
Severity
HIGH
CVSS score
8.6
(v4.0)
Vulnerability status
Deferred
Source identifier
Published
2026-06-11 16:16:24.873000
Last modified
2026-10-26 11:10:00.157000
View original CVE JSON
{
"id": "CVE-2026-53777",
"sourceIdentifier": "[email protected]",
"published": "2026-06-11T16:16:24.873",
"lastModified": "2026-10-26T11:10:00.157",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Perry before 0.5.1159 contains a path traversal vulnerability that allows a malicious build server to write arbitrary content to any location writable by the running process by supplying unsanitized path components in the artifact_name field of ArtifactReady WebSocket messages. Attackers controlling the server URL can deliver traversal payloads through the artifact_name or download_path fields, causing the client to overwrite sensitive files or expose arbitrary local files to an attacker-accessible location."
},
{
"lang": "es",
"value": "Perry antes de 0.5.1159 contiene una vulnerabilidad de salto de ruta que permite a un servidor de compilación malicioso escribir contenido arbitrario en cualquier ubicación escribible por el proceso en ejecución al proporcionar componentes de ruta no saneados en el campo artifact_name de los mensajes WebSocket ArtifactReady. Los atacantes que controlan la URL del servidor pueden entregar cargas útiles de salto de ruta a través de los campos artifact_name o download_path, haciendo que el cliente sobrescriba archivos sensibles o exponga archivos locales arbitrarios a una ubicación accesible para el atacante."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "PerryTS",
"product": "perry",
"defaultStatus": "affected",
"repo": "https://github.com/PerryTS/perry",
"packageURL": "pkg:github/PerryTS/perry",
"versions": [
{
"version": "0",
"lessThan": "0.5.1159",
"versionType": "semver",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV40": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "4.0",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/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": 8.6,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "NONE",
"userInteraction": "PASSIVE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"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": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "REQUIRED",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 2.8,
"impactScore": 5.2
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-06-11T16:10:46.140905Z",
"id": "CVE-2026-53777",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-22"
}
]
}
],
"references": [
{
"url": "https://github.com/PerryTS/perry/commit/95e1043df8081f67038bffce847dd9ddb3dae046",
"source": "[email protected]"
},
{
"url": "https://github.com/PerryTS/perry/pull/4989",
"source": "[email protected]"
},
{
"url": "https://github.com/PerryTS/perry/releases/tag/v0.5.1159",
"source": "[email protected]"
},
{
"url": "https://github.com/PerryTS/perry/security/advisories/GHSA-x55v-q459-68ch",
"source": "[email protected]"
},
{
"url": "https://www.vulncheck.com/advisories/perry-path-traversal-via-artifactready-websocket",
"source": "[email protected]"
},
{
"url": "https://github.com/PerryTS/perry/security/advisories/GHSA-x55v-q459-68ch",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
]
}