Files
vuln-cve/data/2026/18xxx/CVE-2026-18140.json
T

211 lines
8.9 KiB
JSON

{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-18140",
"assignerOrgId": "ff89ba41-3aa1-4d27-914a-91399e9639e5",
"state": "PUBLISHED",
"assignerShortName": "AMZN",
"dateReserved": "2026-07-28T18:30:40.451Z",
"datePublished": "2026-07-30T18:34:04.099Z",
"dateUpdated": "2026-07-30T19:12:50.560Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "ff89ba41-3aa1-4d27-914a-91399e9639e5",
"shortName": "AMZN",
"dateUpdated": "2026-07-30T18:34:04.099Z"
},
"title": "Uncontrolled recursion in the aws-smithy-json unknown-key skip path allows unauthenticated remote denial of service in smithy-rs generated servers",
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"cweId": "CWE-674",
"description": "CWE-674: Uncontrolled Recursion",
"type": "CWE"
}
]
}
],
"impacts": [
{
"capecId": "CAPEC-230",
"descriptions": [
{
"lang": "en",
"value": "CAPEC-230: Serialized Data with Nested Payloads"
}
]
}
],
"affected": [
{
"vendor": "AWS",
"product": "aws-smithy-json",
"versions": [
{
"status": "affected",
"version": "0.32.0",
"lessThanOrEqual": "0.62.6",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
}
],
"cpeApplicability": [
{
"operator": "OR",
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:a:aws:aws-smithy-json:*:*:*:*:*:*:*:*",
"versionStartIncluding": "0.32.0",
"versionEndIncluding": "0.62.6"
}
]
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Uncontrolled recursion in the unknown-key skip path of the aws-smithy-json runtime crate before 0.62.7, which the smithy-rs code generator invokes from every generated struct deserializer, might allow remote unauthenticated users to cause a denial of service (process abort via stack exhaustion) via a single small HTTP request containing deeply nested JSON to a smithy-rs generated server.\n\n\n\nTo remediate this issue, users should upgrade to aws-smithy-json 0.62.7 or later and rebuild.",
"supportingMedia": [
{
"type": "text/html",
"base64": false,
"value": "<p>Uncontrolled recursion in the unknown-key skip path of the aws-smithy-json runtime crate before 0.62.7, which the smithy-rs code generator invokes from every generated struct deserializer, might allow remote unauthenticated users to cause a denial of service (process abort via stack exhaustion) via a single small HTTP request containing deeply nested JSON to a smithy-rs generated server.</p><p>To remediate this issue, users should upgrade to aws-smithy-json 0.62.7 or later and rebuild.</p>"
}
]
}
],
"references": [
{
"url": "https://crates.io/crates/aws-smithy-json/0.62.7",
"tags": [
"patch"
]
},
{
"url": "https://aws.amazon.com/security/security-bulletins/2026-067-aws/",
"tags": [
"vendor-advisory"
]
},
{
"url": "https://github.com/smithy-lang/smithy-rs/security/advisories/GHSA-8ffr-xgwf-xj56",
"tags": [
"third-party-advisory"
]
}
],
"metrics": [
{
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
],
"cvssV3_1": {
"version": "3.1",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "HIGH",
"baseSeverity": "HIGH",
"baseScore": 7.5,
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
},
{
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
],
"cvssV4_0": {
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"subIntegrityImpact": "NONE",
"vulnAvailabilityImpact": "HIGH",
"subAvailabilityImpact": "NONE",
"exploitMaturity": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"Automatable": "NOT_DEFINED",
"Recovery": "NOT_DEFINED",
"valueDensity": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED",
"version": "4.0",
"baseSeverity": "HIGH",
"baseScore": 8.7,
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
}
}
],
"source": {
"discovery": "UNKNOWN"
},
"x_generator": {
"engine": "Vulnogram 1.0.4"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-07-30T19:12:34.733029Z",
"id": "CVE-2026-18140",
"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": "2026-07-30T19:12:50.560Z"
}
}
]
}
}