CVE-2026-92386
Full vulnerability record from the local CVENow database.
Description
When writing a long cookie name and value to a Netscape cookie jar, a remote HTTP server can make `curl` write a record that exceeds its line-length parsing limit. Consequently, any subsequent `curl` invocation reading from that same cookie jar using `--cookie` silently aborts parsing prematurely upon encountering the too long line, ignoring all subsequent valid cookies in the file.
Severity
HIGH
CVSS score
8.1
(v3.1)
Vulnerability status
Awaiting Analysis
Source identifier
2499f714-1537-4658-8207-48ae4bb9eae9
Published
2026-10-20 21:17:21.017000
Last modified
2026-10-29 19:17:29.113000
View original CVE JSON
{
"id": "CVE-2026-92386",
"sourceIdentifier": "2499f714-1537-4658-8207-48ae4bb9eae9",
"published": "2026-10-20T21:17:21.017",
"lastModified": "2026-10-29T19:17:29.113",
"vulnStatus": "Awaiting Analysis",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "When writing a long cookie name and value to a Netscape cookie jar, a remote\nHTTP server can make `curl` write a record that exceeds its line-length\nparsing limit. Consequently, any subsequent `curl` invocation reading from\nthat same cookie jar using `--cookie` silently aborts parsing prematurely upon\nencountering the too long line, ignoring all subsequent valid cookies in the\nfile."
}
],
"affected": [
{
"source": "2499f714-1537-4658-8207-48ae4bb9eae9",
"affectedData": [
{
"vendor": "curl",
"product": "curl",
"defaultStatus": "unaffected",
"versions": [
{
"version": "8.22.0",
"lessThanOrEqual": "8.22.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.21.0",
"lessThanOrEqual": "8.21.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.20.0",
"lessThanOrEqual": "8.20.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.19.0",
"lessThanOrEqual": "8.19.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.18.0",
"lessThanOrEqual": "8.18.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.17.0",
"lessThanOrEqual": "8.17.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.16.0",
"lessThanOrEqual": "8.16.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.15.0",
"lessThanOrEqual": "8.15.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.14.1",
"lessThanOrEqual": "8.14.1",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.14.0",
"lessThanOrEqual": "8.14.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.13.0",
"lessThanOrEqual": "8.13.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.12.1",
"lessThanOrEqual": "8.12.1",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.12.0",
"lessThanOrEqual": "8.12.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.11.1",
"lessThanOrEqual": "8.11.1",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.11.0",
"lessThanOrEqual": "8.11.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.10.1",
"lessThanOrEqual": "8.10.1",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.10.0",
"lessThanOrEqual": "8.10.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.9.1",
"lessThanOrEqual": "8.9.1",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.9.0",
"lessThanOrEqual": "8.9.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.8.0",
"lessThanOrEqual": "8.8.0",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.7.1",
"lessThanOrEqual": "8.7.1",
"versionType": "semver",
"status": "affected"
},
{
"version": "8.7.0",
"lessThanOrEqual": "8.7.0",
"versionType": "semver",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"attackVector": "NETWORK",
"attackComplexity": "HIGH",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 2.2,
"impactScore": 5.9
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-10-29T19:00:27.658021Z",
"id": "CVE-2026-92386",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-1284"
}
]
}
],
"references": [
{
"url": "https://curl.se/docs/CVE-2026-92386.html",
"source": "2499f714-1537-4658-8207-48ae4bb9eae9"
},
{
"url": "https://curl.se/docs/CVE-2026-92386.json",
"source": "2499f714-1537-4658-8207-48ae4bb9eae9"
},
{
"url": "https://hackerone.com/reports/4021979",
"source": "2499f714-1537-4658-8207-48ae4bb9eae9"
},
{
"url": "https://hackerone.com/reports/4021979",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
}
]
}