205 lines
8.3 KiB
JSON
205 lines
8.3 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-2026-48502",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-05-21T15:33:08.293Z",
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"datePublished": "2026-06-22T21:18:29.190Z",
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"dateUpdated": "2026-06-23T15:05:33.595Z"
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},
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"containers": {
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"cna": {
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"title": "MessagePack-CSharp: Denial of service vulnerabilities can swamp the CPU or crash the process with stack and heap overflows",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-125",
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"lang": "en",
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"description": "CWE-125: Out-of-bounds Read",
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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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"descriptions": [
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{
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"cweId": "CWE-190",
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"lang": "en",
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"description": "CWE-190: Integer Overflow or Wraparound",
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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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"descriptions": [
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{
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"cweId": "CWE-407",
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"lang": "en",
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"description": "CWE-407: Inefficient Algorithmic Complexity",
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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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"descriptions": [
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{
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"cweId": "CWE-409",
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"lang": "en",
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"description": "CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)",
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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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"descriptions": [
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{
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"cweId": "CWE-470",
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"lang": "en",
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"description": "CWE-470: Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')",
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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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"descriptions": [
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{
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"cweId": "CWE-502",
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"lang": "en",
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"description": "CWE-502: Deserialization of Untrusted Data",
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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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"descriptions": [
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{
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"cweId": "CWE-674",
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"lang": "en",
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"description": "CWE-674: Uncontrolled Recursion",
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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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"descriptions": [
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{
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"cweId": "CWE-789",
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"lang": "en",
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"description": "CWE-789: Memory Allocation with Excessive Size Value",
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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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"descriptions": [
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{
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"cweId": "CWE-1188",
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"lang": "en",
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"description": "CWE-1188: Insecure Default Initialization of Resource",
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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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"metrics": [
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{
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"cvssV4_0": {
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"attackVector": "NETWORK",
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"attackComplexity": "HIGH",
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"attackRequirements": "PRESENT",
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"privilegesRequired": "NONE",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "NONE",
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"vulnAvailabilityImpact": "HIGH",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 8.2,
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"baseSeverity": "HIGH",
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"vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
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"version": "4.0"
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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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"name": "https://github.com/MessagePack-CSharp/MessagePack-CSharp/security/advisories/GHSA-382j-8mxh-c7x2",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/MessagePack-CSharp/MessagePack-CSharp/security/advisories/GHSA-382j-8mxh-c7x2"
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}
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],
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"affected": [
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{
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"vendor": "MessagePack-CSharp",
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"product": "MessagePack-CSharp",
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"versions": [
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{
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"version": ">= 3.1.7, < 3.1.7",
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"status": "affected"
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},
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{
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"version": "< 2.5.301",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-06-22T21:18:29.190Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "MessagePack for C# is a MessagePack serializer for C#. Prior to 2.5.301 and 3.1.7, MessagePackReader.ReadDateTime() can allocate stack memory based on an attacker-controlled MessagePack extension length. In the slow path for timestamp extension parsing, the computed tokenSize includes the extension body length from the wire and is used in a stackalloc operation before the extension length is validated as one of the valid timestamp sizes. A very small payload can claim a large timestamp extension body and cause a stack allocation large enough to trigger an uncatchable StackOverflowException, terminating the host process. This vulnerability is fixed in 2.5.301 and 3.1.7."
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}
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],
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"source": {
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"advisory": "GHSA-382j-8mxh-c7x2",
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"discovery": "UNKNOWN"
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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": "2026-06-23T14:58:22.893152Z",
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"id": "CVE-2026-48502",
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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": "no"
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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": "2026-06-23T15:05:33.595Z"
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}
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}
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]
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}
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} |