Search
Find a vulnerability
Search criteria
2 vulnerabilities found for Microsoft Visual Studio 2026 version 18.6 by Microsoft
CVE-2026-45591 (GCVE-0-2026-45591)
Vulnerability from nvd – Published: 2026-06-09 17:05 – Updated: 2026-07-01 20:14
VLAI
Title
ASP.NET Core Denial of Service Vulnerability
Summary
Uncontrolled resource consumption in ASP.NET Core allows an unauthorized attacker to deny service over a network.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
21 references
Impacted products
19 products
Date Public
2026-06-09 14:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-45591",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-10T13:47:51.768280Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-10T13:47:58.238Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"cpes": [
"cpe:/o:redhat:enterprise_linux_eus:10.0"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream EUS (v. 10.0)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.2"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream (v. 10)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:enterprise_linux:8::appstream"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream (v. 8)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.4::appstream"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream E4S (v.9.4)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:rhel_eus:9.6::appstream"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream EUS (v.9.6)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:enterprise_linux:9::appstream"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream (v. 9)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux_eus:10.0"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.2"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:enterprise_linux:8::crb"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux CRB (v. 8)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:rhel_eus:9.6::crb"
],
"defaultStatus": "affected",
"product": "Red Hat CodeReady Linux Builder EUS (v.9.6)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:enterprise_linux:9::crb"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:hummingbird:1"
],
"defaultStatus": "affected",
"product": "Red Hat Hardened Images",
"vendor": "Red Hat"
}
],
"datePublic": "2026-06-09T17:05:29.575Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in ASP.NET Core SignalR and Blazor Server. A remote attacker could send a specially crafted MessagePack payload containing deeply nested arrays that trigger excessive recursion and cause a stack overflow. This issue may result in application termination and a denial of service condition"
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Important"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-30T12:10:20.250Z",
"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"shortName": "redhat-SADP"
},
"references": [
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-45591"
},
{
"name": "RHBZ#2487224",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2487224"
},
{
"tags": [
"x_sadp-csaf-vex"
],
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45591.json"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:28007"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:28009"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:25115"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:25111"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:25112"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:25114"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:25110"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:25113"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:28227"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:28011"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:28051"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:25222"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:25220"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:25221"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:26638"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:26994"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:17527"
}
],
"solutions": [
{
"lang": "en",
"value": "RHSA-2026:28007: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)"
},
{
"lang": "en",
"value": "RHSA-2026:28009: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)"
},
{
"lang": "en",
"value": "RHSA-2026:25115: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)"
},
{
"lang": "en",
"value": "RHSA-2026:25111: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)"
},
{
"lang": "en",
"value": "RHSA-2026:25112: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)"
},
{
"lang": "en",
"value": "RHSA-2026:25114: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux CRB (v. 8)"
},
{
"lang": "en",
"value": "RHSA-2026:25110: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux CRB (v. 8)"
},
{
"lang": "en",
"value": "RHSA-2026:25113: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux CRB (v. 8)"
},
{
"lang": "en",
"value": "RHSA-2026:28227: Red Hat Enterprise Linux AppStream E4S (v.9.4)"
},
{
"lang": "en",
"value": "RHSA-2026:28011: Red Hat CodeReady Linux Builder EUS (v.9.6), Red Hat Enterprise Linux AppStream EUS (v.9.6)"
},
{
"lang": "en",
"value": "RHSA-2026:28051: Red Hat CodeReady Linux Builder EUS (v.9.6), Red Hat Enterprise Linux AppStream EUS (v.9.6)"
},
{
"lang": "en",
"value": "RHSA-2026:25222: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)"
},
{
"lang": "en",
"value": "RHSA-2026:25220: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)"
},
{
"lang": "en",
"value": "RHSA-2026:25221: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)"
},
{
"lang": "en",
"value": "RHSA-2026:26638: Red Hat Hardened Images"
},
{
"lang": "en",
"value": "RHSA-2026:26994: Red Hat Hardened Images"
},
{
"lang": "en",
"value": "RHSA-2026:17527: Red Hat Hardened Images"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-06-09T18:07:51.180Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-06-09T17:05:29.575Z",
"value": "Made public."
}
],
"title": "dotnet: ASP.NET Core: Denial of Service via uncontrolled resource consumption",
"workarounds": [
{
"lang": "en",
"value": "Red Hat is not aware of a practical temporary workaround that fully mitigates this issue or meets Red Hat Product Security\u0027s standards for usability, deployment, applicability, or stability. Customers are advised to apply the relevant security updates when they become available."
}
],
"x_adpType": "supplier",
"x_generator": {
"engine": "sadp-cli 1.0.0"
}
}
],
"cna": {
"affected": [
{
"product": ".NET 10.0",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.9",
"status": "affected",
"version": "10.0.0",
"versionType": "custom"
}
]
},
{
"product": ".NET 8.0",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "8.0.28",
"status": "affected",
"version": "8.0.0",
"versionType": "custom"
}
]
},
{
"product": ".NET 9.0",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "9.0.17",
"status": "affected",
"version": "9.0.0",
"versionType": "custom"
}
]
},
{
"product": "ASP.NET Core 10.0",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.9",
"status": "affected",
"version": "10.0",
"versionType": "custom"
}
]
},
{
"product": "ASP.NET Core 8.0",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "8.0.28",
"status": "affected",
"version": "8.0",
"versionType": "custom"
}
]
},
{
"product": "ASP.NET Core 9.0",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "9.0.17",
"status": "affected",
"version": "9.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Visual Studio 2026 version 18.6",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "18.6.3",
"status": "affected",
"version": "18.6.0",
"versionType": "custom"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:visual_studio_2026:*:*:*:*:*:*:*:*",
"versionEndExcluding": "18.6.3",
"versionStartIncluding": "18.6.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
"versionEndExcluding": "10.0.9",
"versionStartIncluding": "10.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*",
"versionEndExcluding": "10.0.9",
"versionStartIncluding": "10.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*",
"versionEndExcluding": "8.0.28",
"versionStartIncluding": "8.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
"versionEndExcluding": "8.0.28",
"versionStartIncluding": "8.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
"versionEndExcluding": "9.0.17",
"versionStartIncluding": "9.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*",
"versionEndExcluding": "9.0.17",
"versionStartIncluding": "9.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"datePublic": "2026-06-09T14:00:00.000Z",
"descriptions": [
{
"lang": "en-US",
"value": "Uncontrolled resource consumption in ASP.NET Core allows an unauthorized attacker to deny service over a network."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en-US",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-400",
"description": "CWE-400: Uncontrolled Resource Consumption",
"lang": "en-US",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-01T20:14:19.181Z",
"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"shortName": "microsoft"
},
"references": [
{
"name": "ASP.NET Core Denial of Service Vulnerability",
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45591"
}
],
"title": "ASP.NET Core Denial of Service Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"assignerShortName": "microsoft",
"cveId": "CVE-2026-45591",
"datePublished": "2026-06-09T17:05:29.575Z",
"dateReserved": "2026-05-12T19:55:45.730Z",
"dateUpdated": "2026-07-01T20:14:19.181Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-45591 (GCVE-0-2026-45591)
Vulnerability from cvelistv5 – Published: 2026-06-09 17:05 – Updated: 2026-07-01 20:14
VLAI
Title
ASP.NET Core Denial of Service Vulnerability
Summary
Uncontrolled resource consumption in ASP.NET Core allows an unauthorized attacker to deny service over a network.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
21 references
Impacted products
19 products
Date Public
2026-06-09 14:00
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-45591",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-06-10T13:47:51.768280Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-06-10T13:47:58.238Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"cpes": [
"cpe:/o:redhat:enterprise_linux_eus:10.0"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream EUS (v. 10.0)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.2"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream (v. 10)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:enterprise_linux:8::appstream"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream (v. 8)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.4::appstream"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream E4S (v.9.4)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:rhel_eus:9.6::appstream"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream EUS (v.9.6)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:enterprise_linux:9::appstream"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux AppStream (v. 9)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux_eus:10.0"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.2"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:enterprise_linux:8::crb"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux CRB (v. 8)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:rhel_eus:9.6::crb"
],
"defaultStatus": "affected",
"product": "Red Hat CodeReady Linux Builder EUS (v.9.6)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:enterprise_linux:9::crb"
],
"defaultStatus": "affected",
"product": "Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)",
"vendor": "Red Hat"
},
{
"cpes": [
"cpe:/a:redhat:hummingbird:1"
],
"defaultStatus": "affected",
"product": "Red Hat Hardened Images",
"vendor": "Red Hat"
}
],
"datePublic": "2026-06-09T17:05:29.575Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in ASP.NET Core SignalR and Blazor Server. A remote attacker could send a specially crafted MessagePack payload containing deeply nested arrays that trigger excessive recursion and cause a stack overflow. This issue may result in application termination and a denial of service condition"
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Important"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-770",
"description": "Allocation of Resources Without Limits or Throttling",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-06-30T12:10:20.250Z",
"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"shortName": "redhat-SADP"
},
"references": [
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-45591"
},
{
"name": "RHBZ#2487224",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2487224"
},
{
"tags": [
"x_sadp-csaf-vex"
],
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45591.json"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:28007"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:28009"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:25115"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:25111"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:25112"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:25114"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:25110"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:25113"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:28227"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:28011"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:28051"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:25222"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:25220"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:25221"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:26638"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:26994"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:17527"
}
],
"solutions": [
{
"lang": "en",
"value": "RHSA-2026:28007: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)"
},
{
"lang": "en",
"value": "RHSA-2026:28009: Red Hat Enterprise Linux AppStream EUS (v. 10.0), Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)"
},
{
"lang": "en",
"value": "RHSA-2026:25115: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)"
},
{
"lang": "en",
"value": "RHSA-2026:25111: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)"
},
{
"lang": "en",
"value": "RHSA-2026:25112: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)"
},
{
"lang": "en",
"value": "RHSA-2026:25114: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux CRB (v. 8)"
},
{
"lang": "en",
"value": "RHSA-2026:25110: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux CRB (v. 8)"
},
{
"lang": "en",
"value": "RHSA-2026:25113: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux CRB (v. 8)"
},
{
"lang": "en",
"value": "RHSA-2026:28227: Red Hat Enterprise Linux AppStream E4S (v.9.4)"
},
{
"lang": "en",
"value": "RHSA-2026:28011: Red Hat CodeReady Linux Builder EUS (v.9.6), Red Hat Enterprise Linux AppStream EUS (v.9.6)"
},
{
"lang": "en",
"value": "RHSA-2026:28051: Red Hat CodeReady Linux Builder EUS (v.9.6), Red Hat Enterprise Linux AppStream EUS (v.9.6)"
},
{
"lang": "en",
"value": "RHSA-2026:25222: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)"
},
{
"lang": "en",
"value": "RHSA-2026:25220: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)"
},
{
"lang": "en",
"value": "RHSA-2026:25221: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)"
},
{
"lang": "en",
"value": "RHSA-2026:26638: Red Hat Hardened Images"
},
{
"lang": "en",
"value": "RHSA-2026:26994: Red Hat Hardened Images"
},
{
"lang": "en",
"value": "RHSA-2026:17527: Red Hat Hardened Images"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-06-09T18:07:51.180Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-06-09T17:05:29.575Z",
"value": "Made public."
}
],
"title": "dotnet: ASP.NET Core: Denial of Service via uncontrolled resource consumption",
"workarounds": [
{
"lang": "en",
"value": "Red Hat is not aware of a practical temporary workaround that fully mitigates this issue or meets Red Hat Product Security\u0027s standards for usability, deployment, applicability, or stability. Customers are advised to apply the relevant security updates when they become available."
}
],
"x_adpType": "supplier",
"x_generator": {
"engine": "sadp-cli 1.0.0"
}
}
],
"cna": {
"affected": [
{
"product": ".NET 10.0",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.9",
"status": "affected",
"version": "10.0.0",
"versionType": "custom"
}
]
},
{
"product": ".NET 8.0",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "8.0.28",
"status": "affected",
"version": "8.0.0",
"versionType": "custom"
}
]
},
{
"product": ".NET 9.0",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "9.0.17",
"status": "affected",
"version": "9.0.0",
"versionType": "custom"
}
]
},
{
"product": "ASP.NET Core 10.0",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "10.0.9",
"status": "affected",
"version": "10.0",
"versionType": "custom"
}
]
},
{
"product": "ASP.NET Core 8.0",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "8.0.28",
"status": "affected",
"version": "8.0",
"versionType": "custom"
}
]
},
{
"product": "ASP.NET Core 9.0",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "9.0.17",
"status": "affected",
"version": "9.0",
"versionType": "custom"
}
]
},
{
"product": "Microsoft Visual Studio 2026 version 18.6",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "18.6.3",
"status": "affected",
"version": "18.6.0",
"versionType": "custom"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:visual_studio_2026:*:*:*:*:*:*:*:*",
"versionEndExcluding": "18.6.3",
"versionStartIncluding": "18.6.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
"versionEndExcluding": "10.0.9",
"versionStartIncluding": "10.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*",
"versionEndExcluding": "10.0.9",
"versionStartIncluding": "10.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*",
"versionEndExcluding": "8.0.28",
"versionStartIncluding": "8.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
"versionEndExcluding": "8.0.28",
"versionStartIncluding": "8.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:.net:*:*:*:*:*:*:*:*",
"versionEndExcluding": "9.0.17",
"versionStartIncluding": "9.0.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*",
"versionEndExcluding": "9.0.17",
"versionStartIncluding": "9.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"datePublic": "2026-06-09T14:00:00.000Z",
"descriptions": [
{
"lang": "en-US",
"value": "Uncontrolled resource consumption in ASP.NET Core allows an unauthorized attacker to deny service over a network."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.5,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en-US",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-400",
"description": "CWE-400: Uncontrolled Resource Consumption",
"lang": "en-US",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-01T20:14:19.181Z",
"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"shortName": "microsoft"
},
"references": [
{
"name": "ASP.NET Core Denial of Service Vulnerability",
"tags": [
"vendor-advisory",
"patch"
],
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45591"
}
],
"title": "ASP.NET Core Denial of Service Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"assignerShortName": "microsoft",
"cveId": "CVE-2026-45591",
"datePublished": "2026-06-09T17:05:29.575Z",
"dateReserved": "2026-05-12T19:55:45.730Z",
"dateUpdated": "2026-07-01T20:14:19.181Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}