154 lines
7.0 KiB
JSON
154 lines
7.0 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-5079",
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"assignerOrgId": "ce714d77-add3-4f53-aff5-83d477b104bb",
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"state": "PUBLISHED",
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"assignerShortName": "openjs",
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"dateReserved": "2026-03-28T19:04:56.443Z",
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"datePublished": "2026-06-15T13:56:45.520Z",
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"dateUpdated": "2026-06-15T16:00:43.955Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "ce714d77-add3-4f53-aff5-83d477b104bb",
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"shortName": "openjs",
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"dateUpdated": "2026-06-15T13:56:45.520Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Impact: multer versions 1.0.0 through 2.1.1 and 3.0.0-alpha.1 are vulnerable to a Denial of Service via deeply nested field names in multipart form data. The append-field dependency parses bracket notation in field names with no limit on nesting depth, allowing an attacker to force allocation of deeply nested object structures that consume CPU and memory. A single HTTP request with a crafted multipart body is sufficient to exploit this.\n\nPatches: Users should upgrade to multer 2.2.0 (2.x line) or 3.0.0-alpha.2 (3.x prerelease) and configure the new limits.fieldNestingDepth option to the minimum depth their application requires.\n\nWorkarounds: Set limits.fields to a reasonable value to reduce the number of fields an attacker can send per request. This does not fully mitigate the issue but limits the impact.",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "Impact: multer versions 1.0.0 through 2.1.1 and 3.0.0-alpha.1 are vulnerable to a Denial of Service via deeply nested field names in multipart form data. The append-field dependency parses bracket notation in field names with no limit on nesting depth, allowing an attacker to force allocation of deeply nested object structures that consume CPU and memory. A single HTTP request with a crafted multipart body is sufficient to exploit this.\n\nPatches: Users should upgrade to multer 2.2.0 (2.x line) or 3.0.0-alpha.2 (3.x prerelease) and configure the new limits.fieldNestingDepth option to the minimum depth their application requires.\n\nWorkarounds: Set limits.fields to a reasonable value to reduce the number of fields an attacker can send per request. This does not fully mitigate the issue but limits the impact."
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}
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]
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}
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],
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"affected": [
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{
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"vendor": "multer",
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"product": "multer",
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"defaultStatus": "unaffected",
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"versions": [
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{
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"versionType": "semver",
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"status": "affected",
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"version": "1.0.0",
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"lessThan": "2.2.0"
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},
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{
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"versionType": "semver",
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"status": "unaffected",
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"version": "2.2.0"
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},
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{
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"versionType": "semver",
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"status": "affected",
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"version": "3.0.0-alpha.1",
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"lessThan": "3.0.0-alpha.2"
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},
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{
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"versionType": "semver",
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"status": "unaffected",
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"version": "3.0.0-alpha.2"
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}
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],
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"packageURL": "pkg:npm/multer"
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}
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],
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"references": [
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{
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"url": "https://github.com/expressjs/multer/security/advisories/GHSA-72gw-mp4g-v24j"
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},
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{
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"url": "https://cna.openjsf.org/security-advisories.html"
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}
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],
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"credits": [
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{
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"lang": "en",
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"type": "reporter",
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"value": "tndud042713"
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},
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{
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"lang": "en",
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"type": "remediation developer",
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"value": "UlisesGascon"
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}
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],
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"title": "multer vulnerable to Denial of Service via deeply nested field names",
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"metrics": [
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{
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"format": "CVSS",
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"baseScore": 7.5,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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]
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-400",
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"lang": "en",
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"description": "CWE-400: Uncontrolled Resource Consumption",
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"type": "CWE"
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}
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]
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}
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],
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"x_generator": {
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"engine": "cve-kit 1.0.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-06-15T16:00:29.855724Z",
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"id": "CVE-2026-5079",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "yes"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-06-15T16:00:43.955Z"
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}
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}
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]
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}
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} |