204 lines
8.1 KiB
JSON
204 lines
8.1 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-2026-85396",
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"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"state": "PUBLISHED",
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"assignerShortName": "VulnCheck",
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"dateReserved": "2026-09-03T18:10:59.168Z",
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"datePublished": "2026-09-03T18:54:27.903Z",
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"dateUpdated": "2026-09-03T19:00:09.867Z"
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},
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"containers": {
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"cna": {
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"shortName": "VulnCheck",
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"dateUpdated": "2026-09-03T18:54:27.903Z"
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},
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"datePublic": "2026-06-12T00:00:00.000Z",
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"title": "rubyzip before 3.4.0 Path Traversal in Zip::Entry#extract via Sibling-Directory Prefix",
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"descriptions": [
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{
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"lang": "en",
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"value": "rubyzip versions before 3.4.0 contain a path traversal vulnerability in Zip::Entry#extract that fails to properly validate extraction paths using prefix comparison without trailing separators. Attackers can craft archive entries with names like ../upload_backup/owned.sh to write files outside the intended extraction directory into sibling paths sharing the destination prefix."
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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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"lang": "en",
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"description": "Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')",
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"cweId": "CWE-22",
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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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"affected": [
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{
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"vendor": "rubyzip",
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"product": "rubyzip",
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"defaultStatus": "unaffected",
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"versions": [
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{
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"version": "0",
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"lessThan": "3.4.0",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "3.4.0",
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"status": "unaffected",
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"versionType": "semver"
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}
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],
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"packageURL": "pkg:gem/rubyzip"
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:a:rubyzip_project:rubyzip:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "3.4.0"
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}
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]
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}
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]
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}
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],
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"metrics": [
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{
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"format": "CVSS",
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"cvssV4_0": {
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"version": "4.0",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "HIGH",
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"vulnAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 8.7,
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"baseSeverity": "HIGH"
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}
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},
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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:H/A:N",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"scope": "UNCHANGED",
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"confidentialityImpact": "NONE",
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"integrityImpact": "HIGH",
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"availabilityImpact": "NONE",
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"baseScore": 7.5,
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"baseSeverity": "HIGH"
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}
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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/rubyzip/rubyzip/commit/17edfbf4423b83211b075acc23a7d8640da63449",
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"tags": [
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"patch"
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],
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"name": "Patch Commit"
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},
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{
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"url": "https://github.com/rubyzip/rubyzip",
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"tags": [
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"product"
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]
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},
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{
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"url": "https://github.com/rubyzip/rubyzip/releases/tag/v3.4.0",
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"tags": [
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"release-notes"
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],
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"name": "rubyzip v3.4.0 Release Notes"
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},
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{
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"url": "https://github.com/rubyzip/rubyzip/blob/v3.3.1/lib/zip/entry.rb",
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"tags": [
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"technical-description"
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]
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},
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{
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"url": "https://github.com/geo-chen/oss/blob/main/rubyzip.md",
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"tags": [
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"technical-description"
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]
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},
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{
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"name": "VulnCheck Advisory: rubyzip before 3.4.0 Path Traversal in Zip::Entry#extract via Sibling-Directory Prefix",
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"tags": [
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"third-party-advisory"
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],
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"url": "https://www.vulncheck.com/advisories/rubyzip-before-3.4.0-path-traversal-in-zip-entry-extract-via-sibling-directory-prefix"
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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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"value": "George Chen",
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"type": "finder"
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}
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],
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"x_generator": {
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"engine": "vulncheck-endgame"
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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": "2026-09-03T18:59:39.190691Z",
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"id": "CVE-2026-85396",
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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": "2026-09-03T19:00:09.867Z"
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}
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}
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]
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}
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} |