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vuln-cve/data/2026/77xxx/CVE-2026-77360.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-77360",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-08-20T19:28:35.245Z",
"datePublished": "2026-09-16T18:42:45.816Z",
"dateUpdated": "2026-09-16T19:40:51.991Z"
},
"containers": {
"cna": {
"title": "oRPC: Vary Header Injection in CORS Plugin leading to potential Cache/CORS Bypass",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-113",
"lang": "en",
"description": "CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Request/Response Splitting')",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV4_0": {
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"attackRequirements": "PRESENT",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"vulnConfidentialityImpact": "NONE",
"vulnIntegrityImpact": "NONE",
"vulnAvailabilityImpact": "NONE",
"subConfidentialityImpact": "LOW",
"subIntegrityImpact": "LOW",
"subAvailabilityImpact": "NONE",
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
"version": "4.0"
}
}
],
"references": [
{
"name": "https://github.com/middleapi/orpc/security/advisories/GHSA-j9v4-rhgr-4m5f",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/middleapi/orpc/security/advisories/GHSA-j9v4-rhgr-4m5f"
},
{
"name": "https://github.com/middleapi/orpc/issues/1661",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/middleapi/orpc/issues/1661"
},
{
"name": "https://github.com/middleapi/orpc/pull/1662",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/middleapi/orpc/pull/1662"
},
{
"name": "https://github.com/middleapi/orpc/commit/daabded122a89d323357c4c401e879701864cb2f",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/middleapi/orpc/commit/daabded122a89d323357c4c401e879701864cb2f"
},
{
"name": "https://github.com/middleapi/orpc/releases/tag/v1.14.8",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/middleapi/orpc/releases/tag/v1.14.8"
}
],
"affected": [
{
"vendor": "middleapi",
"product": "orpc",
"versions": [
{
"version": "< 1.14.8",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-09-16T18:42:45.816Z"
},
"descriptions": [
{
"lang": "en",
"value": "oRPC is an tool that helps build APIs that are end-to-end type-safe and adhere to OpenAPI standards. Prior to 1.14.8, the @orpc/server CORS plugin in packages/server/src/plugins/cors.ts copies a client's incoming Vary request header into the response instead of controlling Vary as a response-only header and using Origin for request-origin variation. In deployments behind a shared cache, CDN, or reverse proxy that keys responses using Vary, a client can inject arbitrary variation values, pollute cache keys, and cause inconsistent CORS enforcement for other clients. Default non-cached configurations have no established direct confidentiality, integrity, or availability impact. This issue is fixed in version 1.14.8."
}
],
"source": {
"advisory": "GHSA-j9v4-rhgr-4m5f",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/middleapi/orpc/issues/1661",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-09-16T19:40:46.280651Z",
"id": "CVE-2026-77360",
"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": "2026-09-16T19:40:51.991Z"
}
}
]
}
}