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vuln-cve/data/2025/66xxx/CVE-2025-66577.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2025-66577",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2025-12-04T18:53:42.398Z",
"datePublished": "2025-12-05T18:20:25.852Z",
"dateUpdated": "2025-12-05T18:29:10.535Z"
},
"containers": {
"cna": {
"title": "cpp-httplib Untrusted HTTP Header Handling: X-Forwarded-For/X-Real-IP Trust",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-117",
"lang": "en",
"description": "CWE-117: Improper Output Neutralization for Logs",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-807",
"lang": "en",
"description": "CWE-807: Reliance on Untrusted Inputs in a Security Decision",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-gfpf-r66f-5mh2",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-gfpf-r66f-5mh2"
},
{
"name": "https://github.com/yhirose/cpp-httplib/commit/ac9ebb0ee333ce8bf13523f487bdfad9518a2aff",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/yhirose/cpp-httplib/commit/ac9ebb0ee333ce8bf13523f487bdfad9518a2aff"
}
],
"affected": [
{
"vendor": "yhirose",
"product": "cpp-httplib",
"versions": [
{
"version": "< 0.27.0",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2025-12-05T18:20:25.852Z"
},
"descriptions": [
{
"lang": "en",
"value": "cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.27.0, a vulnerability allows attacker-controlled HTTP headers to influence server-visible metadata, logging, and authorization decisions. An attacker can supply X-Forwarded-For or X-Real-IP headers which get accepted unconditionally by get_client_ip() in docker/main.cc, causing access and error logs (nginx_access_logger / nginx_error_logger) to record spoofed client IPs (log poisoning / audit evasion). This vulnerability is fixed in 0.27.0."
}
],
"source": {
"advisory": "GHSA-gfpf-r66f-5mh2",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2025-12-05T18:29:01.280095Z",
"id": "CVE-2025-66577",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "yes"
},
{
"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": "2025-12-05T18:29:10.535Z"
}
}
]
}
}