{
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"cveMetadata": {
"cveId": "CVE-2025-4565",
"assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778",
"state": "PUBLISHED",
"assignerShortName": "Google",
"dateReserved": "2025-05-12T05:48:12.941Z",
"datePublished": "2025-06-16T14:50:40.906Z",
"dateUpdated": "2025-06-16T15:39:18.263Z"
},
"containers": {
"cna": {
"affected": [
{
"collectionURL": "https://github.com/protocolbuffers/protobuf/",
"defaultStatus": "unaffected",
"packageName": "protobuf",
"product": "Python-Protobuf",
"programFiles": [
"python/google/protobuf/internal/decoder.py"
],
"repo": "https://github.com/protocolbuffers/protobuf/",
"vendor": "protocolbuffers",
"versions": [
{
"lessThan": "4.25.8",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "5.29.5",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "6.31.1",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"collectionURL": "https://pypi.org/project/protobuf/",
"defaultStatus": "unaffected",
"product": "Python-Protobuf",
"repo": "https://pypi.org/project/protobuf/",
"vendor": "protocolbuffers",
"versions": [
{
"lessThan": "4.25.8",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "5.29.5",
"status": "affected",
"version": "0",
"versionType": "semver"
},
{
"lessThan": "6.31.1",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Alexis Challande - Trail of Bits Ecosystem Security Team"
}
],
"datePublic": "2025-05-12T22:00:00.000Z",
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Any project that uses Protobuf Pure-Python backend to parse untrusted Protocol Buffers data containing an arbitrary number of recursive groups, recursive messages or a series of SGROUP tags can be corrupted by exceeding the Python recursion limit. This can result in a Denial of service by crashing the application with a RecursionError. We recommend upgrading to version =>6.31.1 or beyond commit 17838beda2943d08b8a9d4df5b68f5f04f26d901
"
}
],
"value": "Any project that uses Protobuf Pure-Python backend to parse untrusted Protocol Buffers data containing an arbitrary number of recursive groups, recursive messages or a series of SGROUP tags can be corrupted by exceeding the Python recursion limit. This can result in a Denial of service by crashing the application with a RecursionError. We recommend upgrading to version =>6.31.1 or beyond commit 17838beda2943d08b8a9d4df5b68f5f04f26d901"
}
],
"impacts": [
{
"capecId": "CAPEC-130",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-130 Excessive Allocation"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 8.2,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-674",
"description": "CWE-674 Uncontrolled Recursion",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"orgId": "14ed7db2-1595-443d-9d34-6215bf890778",
"shortName": "Google",
"dateUpdated": "2025-06-16T14:50:40.906Z"
},
"references": [
{
"url": "https://github.com/protocolbuffers/protobuf/commit/17838beda2943d08b8a9d4df5b68f5f04f26d901"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Unbounded recursion in Python Protobuf",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2025-06-16T15:38:57.654894Z",
"id": "CVE-2025-4565",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"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": "2025-06-16T15:39:18.263Z"
}
}
]
}
}