275 lines
12 KiB
JSON
275 lines
12 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2026-47077",
|
|
"assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "EEF",
|
|
"dateReserved": "2026-05-18T17:28:10.319Z",
|
|
"datePublished": "2026-05-25T14:00:42.217Z",
|
|
"dateUpdated": "2026-05-27T15:40:53.384Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"affected": [
|
|
{
|
|
"collectionURL": "https://repo.hex.pm",
|
|
"cpes": [
|
|
"cpe:2.3:a:benoitc:hackney:*:*:*:*:*:*:*:*"
|
|
],
|
|
"defaultStatus": "unaffected",
|
|
"modules": [
|
|
"hackney_h3"
|
|
],
|
|
"packageName": "hackney",
|
|
"packageURL": "pkg:hex/hackney",
|
|
"product": "hackney",
|
|
"programFiles": [
|
|
"src/hackney_h3.erl"
|
|
],
|
|
"programRoutines": [
|
|
{
|
|
"name": "hackney_h3:await_response_loop/6"
|
|
}
|
|
],
|
|
"repo": "https://github.com/benoitc/hackney",
|
|
"vendor": "benoitc",
|
|
"versions": [
|
|
{
|
|
"lessThan": "4.0.1",
|
|
"status": "affected",
|
|
"version": "2.0.0",
|
|
"versionType": "semver"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"collectionURL": "https://github.com",
|
|
"cpes": [
|
|
"cpe:2.3:a:benoitc:hackney:*:*:*:*:*:*:*:*"
|
|
],
|
|
"defaultStatus": "unaffected",
|
|
"modules": [
|
|
"hackney_h3"
|
|
],
|
|
"packageName": "benoitc/hackney",
|
|
"packageURL": "pkg:github/benoitc/hackney",
|
|
"product": "hackney",
|
|
"programFiles": [
|
|
"src/hackney_h3.erl"
|
|
],
|
|
"programRoutines": [
|
|
{
|
|
"name": "hackney_h3:await_response_loop/6"
|
|
}
|
|
],
|
|
"repo": "https://github.com/benoitc/hackney",
|
|
"vendor": "benoitc",
|
|
"versions": [
|
|
{
|
|
"lessThan": "3d25f9fea26c90609de9d64366fedfe5065413bc",
|
|
"status": "affected",
|
|
"version": "0334af206d5099fdf510ed9eda18e34396f065ad",
|
|
"versionType": "git"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"configurations": [
|
|
{
|
|
"lang": "en",
|
|
"supportingMedia": [
|
|
{
|
|
"base64": false,
|
|
"type": "text/html",
|
|
"value": "The application must use the HTTP/3 transport by calling <tt>hackney_h3</tt> directly or by passing <tt>{transport, h3}</tt> to <tt>hackney:request/5</tt>. The default hackney transport (TCP/TLS) is not affected."
|
|
}
|
|
],
|
|
"value": "The application must use the HTTP/3 transport by calling hackney_h3 directly or by passing {transport, h3} to hackney:request/5. The default hackney transport (TCP/TLS) is not affected."
|
|
}
|
|
],
|
|
"cpeApplicability": [
|
|
{
|
|
"nodes": [
|
|
{
|
|
"cpeMatch": [
|
|
{
|
|
"criteria": "cpe:2.3:a:benoitc:hackney:*:*:*:*:*:*:*:*",
|
|
"versionEndExcluding": "4.0.1",
|
|
"versionStartIncluding": "2.0.0",
|
|
"vulnerable": true
|
|
}
|
|
],
|
|
"negate": false,
|
|
"operator": "AND"
|
|
}
|
|
],
|
|
"operator": "AND"
|
|
}
|
|
],
|
|
"credits": [
|
|
{
|
|
"lang": "en",
|
|
"type": "finder",
|
|
"value": "Peter Ullrich"
|
|
},
|
|
{
|
|
"lang": "en",
|
|
"type": "remediation developer",
|
|
"value": "Benoit Chesneau"
|
|
},
|
|
{
|
|
"lang": "en",
|
|
"type": "analyst",
|
|
"value": "Jonatan Männchen / EEF"
|
|
}
|
|
],
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"supportingMedia": [
|
|
{
|
|
"base64": false,
|
|
"type": "text/html",
|
|
"value": "Allocation of Resources Without Limits or Throttling vulnerability in benoitc hackney allows Flooding.<p><tt>hackney_h3:await_response_loop/6</tt> accumulates the HTTP/3 response body in memory without any size cap. The <tt>after Timeout</tt> clause is a per-message inactivity timer that resets on every received chunk, housekeeping message, or settings frame — it is not a wall-clock deadline. A malicious HTTP/3 server that emits one small chunk every <tt>Timeout - 1</tt> ms with <tt>Fin = false</tt> and never sends a final frame keeps the loop alive indefinitely while the accumulation buffer grows linearly without bound, eventually exhausting the BEAM process heap and causing an out-of-memory condition.</p><p>This issue affects hackney: from 2.0.0 before 4.0.1.</p>"
|
|
}
|
|
],
|
|
"value": "Allocation of Resources Without Limits or Throttling vulnerability in benoitc hackney allows Flooding. hackney_h3:await_response_loop/6 accumulates the HTTP/3 response body in memory without any size cap. The after Timeout clause is a per-message inactivity timer that resets on every received chunk, housekeeping message, or settings frame — it is not a wall-clock deadline. A malicious HTTP/3 server that emits one small chunk every Timeout - 1 ms with Fin = false and never sends a final frame keeps the loop alive indefinitely while the accumulation buffer grows linearly without bound, eventually exhausting the BEAM process heap and causing an out-of-memory condition.\n\nThis issue affects hackney: from 2.0.0 before 4.0.1."
|
|
}
|
|
],
|
|
"impacts": [
|
|
{
|
|
"capecId": "CAPEC-125",
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "CAPEC-125 Flooding"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"cvssV4_0": {
|
|
"attackComplexity": "LOW",
|
|
"attackRequirements": "PRESENT",
|
|
"attackVector": "NETWORK",
|
|
"baseScore": 8.2,
|
|
"baseSeverity": "HIGH",
|
|
"privilegesRequired": "NONE",
|
|
"subAvailabilityImpact": "NONE",
|
|
"subConfidentialityImpact": "NONE",
|
|
"subIntegrityImpact": "NONE",
|
|
"userInteraction": "NONE",
|
|
"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"
|
|
},
|
|
"format": "CVSS",
|
|
"scenarios": [
|
|
{
|
|
"lang": "en",
|
|
"value": "GENERAL"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"problemTypes": [
|
|
{
|
|
"descriptions": [
|
|
{
|
|
"cweId": "CWE-400",
|
|
"description": "CWE-400 Uncontrolled Resource Consumption",
|
|
"lang": "en",
|
|
"type": "CWE"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"providerMetadata": {
|
|
"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
|
|
"shortName": "EEF",
|
|
"dateUpdated": "2026-05-27T15:40:53.384Z"
|
|
},
|
|
"references": [
|
|
{
|
|
"tags": [
|
|
"vendor-advisory",
|
|
"related"
|
|
],
|
|
"url": "https://github.com/benoitc/hackney/security/advisories/GHSA-jq4m-q6p2-8gwc"
|
|
},
|
|
{
|
|
"tags": [
|
|
"related"
|
|
],
|
|
"url": "https://cna.erlef.org/cves/CVE-2026-47077.html"
|
|
},
|
|
{
|
|
"tags": [
|
|
"related"
|
|
],
|
|
"url": "https://osv.dev/vulnerability/EEF-CVE-2026-47077"
|
|
},
|
|
{
|
|
"tags": [
|
|
"patch"
|
|
],
|
|
"url": "https://github.com/benoitc/hackney/commit/3d25f9fea26c90609de9d64366fedfe5065413bc"
|
|
}
|
|
],
|
|
"source": {
|
|
"discovery": "EXTERNAL"
|
|
},
|
|
"title": "Unbounded body accumulation in HTTP/3 response loop in hackney",
|
|
"x_generator": {
|
|
"engine": "cvelib 1.8.0"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"references": [
|
|
{
|
|
"url": "https://github.com/benoitc/hackney/security/advisories/GHSA-jq4m-q6p2-8gwc",
|
|
"tags": [
|
|
"exploit"
|
|
]
|
|
}
|
|
],
|
|
"metrics": [
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"timestamp": "2026-05-26T15:47:51.427632Z",
|
|
"id": "CVE-2026-47077",
|
|
"options": [
|
|
{
|
|
"Exploitation": "poc"
|
|
},
|
|
{
|
|
"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": "2026-05-26T15:47:54.752Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |