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vuln-cve/data/2026/79xxx/CVE-2026-79786.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-79786",
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"state": "PUBLISHED",
"assignerShortName": "VulnCheck",
"dateReserved": "2026-08-25T14:32:37.763Z",
"datePublished": "2026-08-25T18:23:14.494Z",
"dateUpdated": "2026-08-28T22:33:16.534Z"
},
"containers": {
"cna": {
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"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"shortName": "VulnCheck",
"dateUpdated": "2026-08-25T18:23:14.494Z"
},
"datePublic": "2026-07-01T00:00:00.000Z",
"title": "Coroot 1.20.2 through 1.24.5 Unvalidated Redirect URI in MCP OAuth Client Registration",
"descriptions": [
{
"lang": "en",
"value": "Coroot's unauthenticated MCP OAuth dynamic client registration endpoint accepts any syntactically valid redirect URI without validation, allowing attackers to register clients pointing to attacker-controlled hosts. Attackers can send authorization URLs to signed-in users, capture their authorization codes upon consent approval, and exchange them for access tokens to hijack MCP sessions."
}
],
"problemTypes": [
{
"descriptions": [
{
"lang": "en",
"description": "URL Redirection to Untrusted Site ('Open Redirect')",
"cweId": "CWE-601",
"type": "CWE"
}
]
}
],
"affected": [
{
"vendor": "coroot",
"product": "coroot",
"collectionURL": "https://github.com/coroot/coroot",
"repo": "https://github.com/coroot/coroot",
"packageURL": "pkg:golang/github.com/coroot/coroot",
"defaultStatus": "unaffected",
"versions": [
{
"version": "1.20.2",
"lessThanOrEqual": "1.24.5",
"status": "affected",
"versionType": "semver"
}
]
}
],
"metrics": [
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"format": "CVSS",
"cvssV4_0": {
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "NONE",
"userInteraction": "ACTIVE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "LOW",
"vulnAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"subAvailabilityImpact": "NONE",
"baseScore": 7,
"baseSeverity": "HIGH"
}
},
{
"format": "CVSS",
"cvssV3_1": {
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "REQUIRED",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"availabilityImpact": "NONE",
"baseScore": 7.1,
"baseSeverity": "HIGH"
}
}
],
"references": [
{
"url": "https://github.com/coroot/coroot",
"tags": [
"product"
]
},
{
"url": "https://github.com/coroot/coroot/issues/929",
"tags": [
"issue-tracking"
]
},
{
"url": "https://github.com/coroot/coroot/blob/v1.24.5/api/mcp_oauth.go",
"tags": [
"technical-description"
]
},
{
"name": "VulnCheck Advisory: Coroot 1.20.2 through 1.24.5 Unvalidated Redirect URI in MCP OAuth Client Registration",
"tags": [
"third-party-advisory"
],
"url": "https://www.vulncheck.com/advisories/coroot-1.20.2-through-1.24.5-unvalidated-redirect-uri-in-mcp-oauth-client-registration"
}
],
"credits": [
{
"lang": "en",
"value": "George Chen",
"type": "finder"
}
],
"x_generator": {
"engine": "vulncheck-endgame"
}
},
"adp": [
{
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{
"url": "https://github.com/coroot/coroot/issues/929",
"tags": [
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"metrics": [
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"other": {
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"content": {
"timestamp": "2026-08-28T22:32:54.593010Z",
"id": "CVE-2026-79786",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"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": "2026-08-28T22:33:16.534Z"
}
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]
}
}