CVE-2026-94266
Full vulnerability record from the local CVENow database.
Description
libcurl could accidentally return a URL for `curl_easy_getinfo()`'s `CURLINFO_EFFECTIVE_URL` option containing credentials, even though neither the URL provided to libcurl nor the redirected URL did.
Severity
HIGH
CVSS score
7.5
(v3.1)
Vulnerability status
Awaiting Analysis
Source identifier
2499f714-1537-4658-8207-48ae4bb9eae9
Published
2026-10-20 21:17:22.290000
Last modified
2026-10-30 17:17:31.937000
View original CVE JSON
{
"id": "CVE-2026-94266",
"sourceIdentifier": "2499f714-1537-4658-8207-48ae4bb9eae9",
"published": "2026-10-20T21:17:22.290",
"lastModified": "2026-10-30T17:17:31.937",
"vulnStatus": "Awaiting Analysis",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "libcurl could accidentally return a URL for `curl_easy_getinfo()`'s\n`CURLINFO_EFFECTIVE_URL` option containing credentials, even though neither\nthe URL provided to libcurl nor the redirected URL did."
}
],
"affected": [
{
"source": "2499f714-1537-4658-8207-48ae4bb9eae9",
"affectedData": [
{
"vendor": "curl",
"product": "curl",
"defaultStatus": "unaffected",
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{
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},
{
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"status": "affected"
},
{
"version": "8.20.0",
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"versionType": "semver",
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},
{
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},
{
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{
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{
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{
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{
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{
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{
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]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"availabilityImpact": "NONE"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-10-30T16:22:04.122826Z",
"id": "CVE-2026-94266",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-522"
}
]
}
],
"references": [
{
"url": "https://curl.se/docs/CVE-2026-94266.html",
"source": "2499f714-1537-4658-8207-48ae4bb9eae9"
},
{
"url": "https://curl.se/docs/CVE-2026-94266.json",
"source": "2499f714-1537-4658-8207-48ae4bb9eae9"
},
{
"url": "https://hackerone.com/reports/4041053",
"source": "2499f714-1537-4658-8207-48ae4bb9eae9"
},
{
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"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
]
}