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UBUNTU-CVE-2026-92391 (CVE-2026-92391)
Vulnerability from osv_ubuntu – Published: 2026-10-14 06:00 – Updated: 2026-10-20 20:23 – Source website
VLAI
Details
A deeply nested multipart MIME structure constructed via the public API causes a stack overflow in libcurl during normal cleanup operations. An excessive recursion depth within curl_mime_free leads to unbounded stack frame allocation during structure traversal, ultimately crashing the host process.
Severity
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "curl",
"binary_version": "7.58.0-2ubuntu3.24+esm15"
},
{
"binary_name": "libcurl3-gnutls",
"binary_version": "7.58.0-2ubuntu3.24+esm15"
},
{
"binary_name": "libcurl3-nss",
"binary_version": "7.58.0-2ubuntu3.24+esm15"
},
{
"binary_name": "libcurl4",
"binary_version": "7.58.0-2ubuntu3.24+esm15"
}
],
"priority_reason": "Upstream defined this as low severity"
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "curl",
"purl": "pkg:deb/ubuntu/curl@7.58.0-2ubuntu3.24+esm15?arch=source\u0026distro=esm-infra/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "7.58.0-2ubuntu3.24+esm15"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"7.55.1-1ubuntu2",
"7.55.1-1ubuntu2.1",
"7.57.0-1ubuntu1",
"7.58.0-2ubuntu1",
"7.58.0-2ubuntu2",
"7.58.0-2ubuntu3",
"7.58.0-2ubuntu3.1",
"7.58.0-2ubuntu3.2",
"7.58.0-2ubuntu3.3",
"7.58.0-2ubuntu3.5",
"7.58.0-2ubuntu3.6",
"7.58.0-2ubuntu3.7",
"7.58.0-2ubuntu3.8",
"7.58.0-2ubuntu3.9",
"7.58.0-2ubuntu3.10",
"7.58.0-2ubuntu3.12",
"7.58.0-2ubuntu3.13",
"7.58.0-2ubuntu3.14",
"7.58.0-2ubuntu3.15",
"7.58.0-2ubuntu3.16",
"7.58.0-2ubuntu3.17",
"7.58.0-2ubuntu3.18",
"7.58.0-2ubuntu3.19",
"7.58.0-2ubuntu3.20",
"7.58.0-2ubuntu3.21",
"7.58.0-2ubuntu3.22",
"7.58.0-2ubuntu3.23",
"7.58.0-2ubuntu3.24",
"7.58.0-2ubuntu3.24+esm1",
"7.58.0-2ubuntu3.24+esm2",
"7.58.0-2ubuntu3.24+esm3",
"7.58.0-2ubuntu3.24+esm4",
"7.58.0-2ubuntu3.24+esm5",
"7.58.0-2ubuntu3.24+esm7",
"7.58.0-2ubuntu3.24+esm8",
"7.58.0-2ubuntu3.24+esm9",
"7.58.0-2ubuntu3.24+esm10",
"7.58.0-2ubuntu3.24+esm11",
"7.58.0-2ubuntu3.24+esm12",
"7.58.0-2ubuntu3.24+esm14"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "curl",
"binary_version": "7.68.0-1ubuntu2.25+esm10"
},
{
"binary_name": "libcurl3-gnutls",
"binary_version": "7.68.0-1ubuntu2.25+esm10"
},
{
"binary_name": "libcurl3-nss",
"binary_version": "7.68.0-1ubuntu2.25+esm10"
},
{
"binary_name": "libcurl4",
"binary_version": "7.68.0-1ubuntu2.25+esm10"
}
],
"priority_reason": "Upstream defined this as low severity"
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "curl",
"purl": "pkg:deb/ubuntu/curl@7.68.0-1ubuntu2.25+esm10?arch=source\u0026distro=esm-infra/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "7.68.0-1ubuntu2.25+esm10"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"7.65.3-1ubuntu3",
"7.65.3-1ubuntu4",
"7.66.0-1ubuntu1",
"7.67.0-2ubuntu1",
"7.68.0-1ubuntu1",
"7.68.0-1ubuntu2",
"7.68.0-1ubuntu2.1",
"7.68.0-1ubuntu2.2",
"7.68.0-1ubuntu2.4",
"7.68.0-1ubuntu2.5",
"7.68.0-1ubuntu2.6",
"7.68.0-1ubuntu2.7",
"7.68.0-1ubuntu2.10",
"7.68.0-1ubuntu2.11",
"7.68.0-1ubuntu2.12",
"7.68.0-1ubuntu2.13",
"7.68.0-1ubuntu2.14",
"7.68.0-1ubuntu2.15",
"7.68.0-1ubuntu2.16",
"7.68.0-1ubuntu2.18",
"7.68.0-1ubuntu2.19",
"7.68.0-1ubuntu2.20",
"7.68.0-1ubuntu2.21",
"7.68.0-1ubuntu2.22",
"7.68.0-1ubuntu2.23",
"7.68.0-1ubuntu2.24",
"7.68.0-1ubuntu2.25",
"7.68.0-1ubuntu2.25+esm2",
"7.68.0-1ubuntu2.25+esm3",
"7.68.0-1ubuntu2.25+esm4",
"7.68.0-1ubuntu2.25+esm5",
"7.68.0-1ubuntu2.25+esm6",
"7.68.0-1ubuntu2.25+esm7",
"7.68.0-1ubuntu2.25+esm9"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "curl",
"binary_version": "7.81.0-1ubuntu1.30"
},
{
"binary_name": "libcurl3-gnutls",
"binary_version": "7.81.0-1ubuntu1.30"
},
{
"binary_name": "libcurl3-nss",
"binary_version": "7.81.0-1ubuntu1.30"
},
{
"binary_name": "libcurl4",
"binary_version": "7.81.0-1ubuntu1.30"
}
],
"priority_reason": "Upstream defined this as low severity"
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "curl",
"purl": "pkg:deb/ubuntu/curl@7.81.0-1ubuntu1.30?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "7.81.0-1ubuntu1.30"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"7.74.0-1.3ubuntu2",
"7.74.0-1.3ubuntu3",
"7.80.0-3",
"7.81.0-1",
"7.81.0-1ubuntu1.1",
"7.81.0-1ubuntu1.2",
"7.81.0-1ubuntu1.3",
"7.81.0-1ubuntu1.4",
"7.81.0-1ubuntu1.6",
"7.81.0-1ubuntu1.7",
"7.81.0-1ubuntu1.8",
"7.81.0-1ubuntu1.10",
"7.81.0-1ubuntu1.11",
"7.81.0-1ubuntu1.13",
"7.81.0-1ubuntu1.14",
"7.81.0-1ubuntu1.15",
"7.81.0-1ubuntu1.16",
"7.81.0-1ubuntu1.17",
"7.81.0-1ubuntu1.18",
"7.81.0-1ubuntu1.19",
"7.81.0-1ubuntu1.20",
"7.81.0-1ubuntu1.21",
"7.81.0-1ubuntu1.22",
"7.81.0-1ubuntu1.23",
"7.81.0-1ubuntu1.24",
"7.81.0-1ubuntu1.25",
"7.81.0-1ubuntu1.26",
"7.81.0-1ubuntu1.27",
"7.81.0-1ubuntu1.29"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "curl",
"binary_version": "8.5.0-2ubuntu10.16"
},
{
"binary_name": "libcurl3t64-gnutls",
"binary_version": "8.5.0-2ubuntu10.16"
},
{
"binary_name": "libcurl4t64",
"binary_version": "8.5.0-2ubuntu10.16"
}
],
"priority_reason": "Upstream defined this as low severity"
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "curl",
"purl": "pkg:deb/ubuntu/curl@8.5.0-2ubuntu10.16?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "8.5.0-2ubuntu10.16"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"8.2.1-1ubuntu3",
"8.2.1-1ubuntu3.1",
"8.4.0-2ubuntu1",
"8.5.0-2ubuntu1",
"8.5.0-2ubuntu2",
"8.5.0-2ubuntu8",
"8.5.0-2ubuntu9",
"8.5.0-2ubuntu10",
"8.5.0-2ubuntu10.1",
"8.5.0-2ubuntu10.2",
"8.5.0-2ubuntu10.3",
"8.5.0-2ubuntu10.4",
"8.5.0-2ubuntu10.5",
"8.5.0-2ubuntu10.6",
"8.5.0-2ubuntu10.7",
"8.5.0-2ubuntu10.8",
"8.5.0-2ubuntu10.9",
"8.5.0-2ubuntu10.10",
"8.5.0-2ubuntu10.11",
"8.5.0-2ubuntu10.12",
"8.5.0-2ubuntu10.13",
"8.5.0-2ubuntu10.15"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "curl",
"binary_version": "8.20.0-2ubuntu11.1"
},
{
"binary_name": "libcurl3t64-gnutls",
"binary_version": "8.20.0-2ubuntu11.1"
},
{
"binary_name": "libcurl4t64",
"binary_version": "8.20.0-2ubuntu11.1"
}
],
"priority_reason": "Upstream defined this as low severity"
},
"package": {
"ecosystem": "Ubuntu:26.10",
"name": "curl",
"purl": "pkg:deb/ubuntu/curl@8.20.0-2ubuntu11.1?arch=source\u0026distro=stonking"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "8.20.0-2ubuntu11.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"8.18.0-1ubuntu2",
"8.20.0-2ubuntu1",
"8.20.0-2ubuntu3",
"8.20.0-2ubuntu10",
"8.20.0-2ubuntu11"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "curl",
"binary_version": "8.18.0-1ubuntu2.8"
},
{
"binary_name": "libcurl3t64-gnutls",
"binary_version": "8.18.0-1ubuntu2.8"
},
{
"binary_name": "libcurl4t64",
"binary_version": "8.18.0-1ubuntu2.8"
}
],
"priority_reason": "Upstream defined this as low severity"
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "curl",
"purl": "pkg:deb/ubuntu/curl@8.18.0-1ubuntu2.8?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "8.18.0-1ubuntu2.8"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"8.14.1-2ubuntu1",
"8.17.0-1ubuntu1",
"8.18.0-1ubuntu1",
"8.18.0-1ubuntu2",
"8.18.0-1ubuntu2.1",
"8.18.0-1ubuntu2.2",
"8.18.0-1ubuntu2.3",
"8.18.0-1ubuntu2.4",
"8.18.0-1ubuntu2.5",
"8.18.0-1ubuntu2.7"
]
}
],
"aliases": [],
"details": "A deeply nested multipart MIME structure constructed via the public API causes a stack overflow in libcurl during normal cleanup operations. An excessive recursion depth within `curl_mime_free` leads to unbounded stack frame allocation during structure traversal, ultimately crashing the host process.",
"id": "UBUNTU-CVE-2026-92391",
"modified": "2026-10-20T20:23:52Z",
"published": "2026-10-14T06:00:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-92391"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-92391"
},
{
"type": "REPORT",
"url": "https://curl.se/docs/CVE-2026-92391.html"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8927-1"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8927-2"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8932-1"
}
],
"related": [
"USN-8927-1",
"USN-8927-2",
"USN-8932-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-92391"
]
}
CVE-2026-92391 (GCVE-0-2026-92391)
Vulnerability from cvelistv5 – Published: 2026-10-20 20:24 – Updated: 2026-10-20 20:24
VLAI
EPSS
VEX
Title
curl_mime_free stack overflow by recursion
Summary
A deeply nested multipart MIME structure constructed via the public API causes
a stack overflow in libcurl during normal cleanup operations. An excessive
recursion depth within `curl_mime_free` leads to unbounded stack frame
allocation during structure traversal, ultimately crashing the host process.
Severity
No CVSS data available.
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| curl | curl |
Affected:
8.22.0 , ≤ 8.22.0
(semver)
Affected: 8.21.0 , ≤ 8.21.0 (semver) Affected: 8.20.0 , ≤ 8.20.0 (semver) Affected: 8.19.0 , ≤ 8.19.0 (semver) Affected: 8.18.0 , ≤ 8.18.0 (semver) Affected: 8.17.0 , ≤ 8.17.0 (semver) Affected: 8.16.0 , ≤ 8.16.0 (semver) Affected: 8.15.0 , ≤ 8.15.0 (semver) Affected: 8.14.1 , ≤ 8.14.1 (semver) Affected: 8.14.0 , ≤ 8.14.0 (semver) Affected: 8.13.0 , ≤ 8.13.0 (semver) Affected: 8.12.1 , ≤ 8.12.1 (semver) Affected: 8.12.0 , ≤ 8.12.0 (semver) Affected: 8.11.1 , ≤ 8.11.1 (semver) Affected: 8.11.0 , ≤ 8.11.0 (semver) Affected: 8.10.1 , ≤ 8.10.1 (semver) Affected: 8.10.0 , ≤ 8.10.0 (semver) Affected: 8.9.1 , ≤ 8.9.1 (semver) Affected: 8.9.0 , ≤ 8.9.0 (semver) Affected: 8.8.0 , ≤ 8.8.0 (semver) Affected: 8.7.1 , ≤ 8.7.1 (semver) Affected: 8.7.0 , ≤ 8.7.0 (semver) Affected: 8.6.0 , ≤ 8.6.0 (semver) Affected: 8.5.0 , ≤ 8.5.0 (semver) Affected: 8.4.0 , ≤ 8.4.0 (semver) Affected: 8.3.0 , ≤ 8.3.0 (semver) Affected: 8.2.1 , ≤ 8.2.1 (semver) Affected: 8.2.0 , ≤ 8.2.0 (semver) Affected: 8.1.2 , ≤ 8.1.2 (semver) Affected: 8.1.1 , ≤ 8.1.1 (semver) Affected: 8.1.0 , ≤ 8.1.0 (semver) Affected: 8.0.1 , ≤ 8.0.1 (semver) Affected: 8.0.0 , ≤ 8.0.0 (semver) Affected: 7.88.1 , ≤ 7.88.1 (semver) Affected: 7.88.0 , ≤ 7.88.0 (semver) Affected: 7.87.0 , ≤ 7.87.0 (semver) Affected: 7.86.0 , ≤ 7.86.0 (semver) Affected: 7.85.0 , ≤ 7.85.0 (semver) Affected: 7.84.0 , ≤ 7.84.0 (semver) Affected: 7.83.1 , ≤ 7.83.1 (semver) Affected: 7.83.0 , ≤ 7.83.0 (semver) Affected: 7.82.0 , ≤ 7.82.0 (semver) Affected: 7.81.0 , ≤ 7.81.0 (semver) Affected: 7.80.0 , ≤ 7.80.0 (semver) Affected: 7.79.1 , ≤ 7.79.1 (semver) Affected: 7.79.0 , ≤ 7.79.0 (semver) Affected: 7.78.0 , ≤ 7.78.0 (semver) Affected: 7.77.0 , ≤ 7.77.0 (semver) Affected: 7.76.1 , ≤ 7.76.1 (semver) Affected: 7.76.0 , ≤ 7.76.0 (semver) Affected: 7.75.0 , ≤ 7.75.0 (semver) Affected: 7.74.0 , ≤ 7.74.0 (semver) Affected: 7.73.0 , ≤ 7.73.0 (semver) Affected: 7.72.0 , ≤ 7.72.0 (semver) Affected: 7.71.1 , ≤ 7.71.1 (semver) Affected: 7.71.0 , ≤ 7.71.0 (semver) Affected: 7.70.0 , ≤ 7.70.0 (semver) Affected: 7.69.1 , ≤ 7.69.1 (semver) Affected: 7.69.0 , ≤ 7.69.0 (semver) Affected: 7.68.0 , ≤ 7.68.0 (semver) Affected: 7.67.0 , ≤ 7.67.0 (semver) Affected: 7.66.0 , ≤ 7.66.0 (semver) Affected: 7.65.3 , ≤ 7.65.3 (semver) Affected: 7.65.2 , ≤ 7.65.2 (semver) Affected: 7.65.1 , ≤ 7.65.1 (semver) Affected: 7.65.0 , ≤ 7.65.0 (semver) Affected: 7.64.1 , ≤ 7.64.1 (semver) Affected: 7.64.0 , ≤ 7.64.0 (semver) Affected: 7.63.0 , ≤ 7.63.0 (semver) Affected: 7.62.0 , ≤ 7.62.0 (semver) Affected: 7.61.1 , ≤ 7.61.1 (semver) Affected: 7.61.0 , ≤ 7.61.0 (semver) Affected: 7.60.0 , ≤ 7.60.0 (semver) Affected: 7.59.0 , ≤ 7.59.0 (semver) Affected: 7.58.0 , ≤ 7.58.0 (semver) Affected: 7.57.0 , ≤ 7.57.0 (semver) Affected: 7.56.1 , ≤ 7.56.1 (semver) Affected: 7.56.0 , ≤ 7.56.0 (semver) |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "curl",
"vendor": "curl",
"versions": [
{
"lessThanOrEqual": "8.22.0",
"status": "affected",
"version": "8.22.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.21.0",
"status": "affected",
"version": "8.21.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.20.0",
"status": "affected",
"version": "8.20.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.19.0",
"status": "affected",
"version": "8.19.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.18.0",
"status": "affected",
"version": "8.18.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.17.0",
"status": "affected",
"version": "8.17.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.16.0",
"status": "affected",
"version": "8.16.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.15.0",
"status": "affected",
"version": "8.15.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.14.1",
"status": "affected",
"version": "8.14.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.14.0",
"status": "affected",
"version": "8.14.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.13.0",
"status": "affected",
"version": "8.13.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.12.1",
"status": "affected",
"version": "8.12.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.12.0",
"status": "affected",
"version": "8.12.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.11.1",
"status": "affected",
"version": "8.11.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.11.0",
"status": "affected",
"version": "8.11.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.10.1",
"status": "affected",
"version": "8.10.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.10.0",
"status": "affected",
"version": "8.10.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.9.1",
"status": "affected",
"version": "8.9.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.9.0",
"status": "affected",
"version": "8.9.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.8.0",
"status": "affected",
"version": "8.8.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.7.1",
"status": "affected",
"version": "8.7.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.7.0",
"status": "affected",
"version": "8.7.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.6.0",
"status": "affected",
"version": "8.6.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.5.0",
"status": "affected",
"version": "8.5.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.4.0",
"status": "affected",
"version": "8.4.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.3.0",
"status": "affected",
"version": "8.3.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.2.1",
"status": "affected",
"version": "8.2.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.2.0",
"status": "affected",
"version": "8.2.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.1.2",
"status": "affected",
"version": "8.1.2",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.1.1",
"status": "affected",
"version": "8.1.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.1.0",
"status": "affected",
"version": "8.1.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.0.1",
"status": "affected",
"version": "8.0.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.0.0",
"status": "affected",
"version": "8.0.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.88.1",
"status": "affected",
"version": "7.88.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.88.0",
"status": "affected",
"version": "7.88.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.87.0",
"status": "affected",
"version": "7.87.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.86.0",
"status": "affected",
"version": "7.86.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.85.0",
"status": "affected",
"version": "7.85.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.84.0",
"status": "affected",
"version": "7.84.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.83.1",
"status": "affected",
"version": "7.83.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.83.0",
"status": "affected",
"version": "7.83.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.82.0",
"status": "affected",
"version": "7.82.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.81.0",
"status": "affected",
"version": "7.81.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.80.0",
"status": "affected",
"version": "7.80.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.79.1",
"status": "affected",
"version": "7.79.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.79.0",
"status": "affected",
"version": "7.79.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.78.0",
"status": "affected",
"version": "7.78.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.77.0",
"status": "affected",
"version": "7.77.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.76.1",
"status": "affected",
"version": "7.76.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.76.0",
"status": "affected",
"version": "7.76.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.75.0",
"status": "affected",
"version": "7.75.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.74.0",
"status": "affected",
"version": "7.74.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.73.0",
"status": "affected",
"version": "7.73.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.72.0",
"status": "affected",
"version": "7.72.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.71.1",
"status": "affected",
"version": "7.71.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.71.0",
"status": "affected",
"version": "7.71.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.70.0",
"status": "affected",
"version": "7.70.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.69.1",
"status": "affected",
"version": "7.69.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.69.0",
"status": "affected",
"version": "7.69.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.68.0",
"status": "affected",
"version": "7.68.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.67.0",
"status": "affected",
"version": "7.67.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.66.0",
"status": "affected",
"version": "7.66.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.65.3",
"status": "affected",
"version": "7.65.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.65.2",
"status": "affected",
"version": "7.65.2",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.65.1",
"status": "affected",
"version": "7.65.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.65.0",
"status": "affected",
"version": "7.65.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.64.1",
"status": "affected",
"version": "7.64.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.64.0",
"status": "affected",
"version": "7.64.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.63.0",
"status": "affected",
"version": "7.63.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.62.0",
"status": "affected",
"version": "7.62.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.61.1",
"status": "affected",
"version": "7.61.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.61.0",
"status": "affected",
"version": "7.61.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.60.0",
"status": "affected",
"version": "7.60.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.59.0",
"status": "affected",
"version": "7.59.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.58.0",
"status": "affected",
"version": "7.58.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.57.0",
"status": "affected",
"version": "7.57.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.56.1",
"status": "affected",
"version": "7.56.1",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.56.0",
"status": "affected",
"version": "7.56.0",
"versionType": "semver"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Joshua Rogers (Aisle Research)"
},
{
"lang": "en",
"type": "remediation developer",
"value": "Daniel Stenberg"
}
],
"descriptions": [
{
"lang": "en",
"value": "A deeply nested multipart MIME structure constructed via the public API causes\na stack overflow in libcurl during normal cleanup operations. An excessive\nrecursion depth within `curl_mime_free` leads to unbounded stack frame\nallocation during structure traversal, ultimately crashing the host process."
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "CWE-674 Uncontrolled Recursion",
"lang": "en"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-20T20:24:10.745Z",
"orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"shortName": "curl"
},
"references": [
{
"name": "json",
"url": "https://curl.se/docs/CVE-2026-92391.json"
},
{
"name": "www",
"url": "https://curl.se/docs/CVE-2026-92391.html"
},
{
"name": "issue",
"url": "https://hackerone.com/reports/4024222"
}
],
"title": "curl_mime_free stack overflow by recursion"
}
},
"cveMetadata": {
"assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
"assignerShortName": "curl",
"cveId": "CVE-2026-92391",
"datePublished": "2026-10-20T20:24:10.745Z",
"dateReserved": "2026-09-16T08:12:51.911Z",
"dateUpdated": "2026-10-20T20:24:10.745Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
USN-8927-1 (UBUNTU-CVE-2026-86409)
Vulnerability from osv_ubuntu – Published: 2026-10-14 11:58 – Updated: 2026-10-14 11:58 – Source website
VLAI
Summary
curl vulnerabilities
Details
It was discovered that curl, when built with GnuTLS support, had an out-of-bounds read in the WebSocket send path. An attacker could possibly use this issue to obtain sensitive information. (CVE-2026-107928)
Maksim discovered that curl did not correctly include the interface binding in connection reuse decisions when CURLOPT_INTERFACE was used. An attacker could possibly use this issue to cause connections to go out from an unintended source address. (CVE-2026-107929)
Stanislav Fort discovered that curl did not properly clear AWS SigV4 authentication state when CURLOPT_AWS_SIGV4 was set to NULL. An attacker could possibly use this issue to obtain sensitive information. (CVE-2026-86409)
Stanislav Fort discovered that the curl command line tool did not set SSH host verification options when following redirects to SFTP or SCP URLs. An attacker could possibly use this issue to perform machine-in-the-middle attacks. (CVE-2026-86410)
Stanislav Fort discovered that curl did not properly handle cookie jar entries that could not be reloaded. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-86412)
Stanislav Fort discovered that an HTTP proxy could trick libcurl into sending credentials to the proxy itself by responding to a CONNECT request with an unexpected authentication challenge. An attacker could possibly use this issue to obtain sensitive information. (CVE-2026-86414)
Stanislav Fort discovered that curl did not correctly handle HSTS entries when an includeSubDomains parent entry was imported before a longer-lived child entry. An attacker could possibly use this issue to cause curl to use unencrypted HTTP connections. (CVE-2026-87862)
Stanislav Fort discovered that curl did not properly handle HSTS max-age values that exceeded calendar time structure bounds. An attacker could possibly use this issue to cause a denial of service or data loss. (CVE-2026-87863)
Stanislav Fort discovered that curl did not properly handle IMAP APPEND commands when CURLOPT_CRLF was enabled, allowing overflow bytes to be interpreted as pipelined commands. An authenticated attacker could possibly use this issue to inject arbitrary IMAP commands. (CVE-2026-87864)
Bobbeh Rhino discovered that libcurl, when used with libssh2 and a hashed known_hosts file, could misreport a host key mismatch as a missing key. An attacker could possibly use this issue to perform machine-in-the-middle attacks. (CVE-2026-87865)
Joshua Rogers discovered that curl did not properly handle long cookie entries written to a Netscape cookie jar. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-92386)
Joshua Rogers discovered that a malicious FTP, IMAP, POP3, or SMTP server could cause libcurl to block indefinitely by omitting the final control-response line. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-92387)
Joshua Rogers discovered that libcurl had a use-after-free vulnerability in the FTP wildcard matching code. An attacker could possibly use this issue to cause curl to crash, resulting in a denial of service, or execute arbitrary code. (CVE-2026-92388)
Joshua Rogers discovered that libcurl's TFTP state machine did not properly validate transfer directions, allowing a malicious server to force the client into transmit mode. An attacker could possibly use this issue to obtain sensitive information. (CVE-2026-92389)
Joshua Rogers discovered that curl did not properly enforce its file overwrite protection when using --remote-header-name in certain circumstances. An attacker could possibly use this issue to overwrite local files. (CVE-2026-92390)
Joshua Rogers discovered that curl had a stack overflow vulnerability when processing deeply nested MIME structures. An attacker could possibly use this issue to cause curl to crash, resulting in a denial of service. (CVE-2026-92391)
Joshua Rogers discovered that libcurl could expose credentials in the URL returned by CURLINFO_EFFECTIVE_URL when credentials were retrieved from a .netrc file. An attacker could possibly use this issue to obtain sensitive information. (CVE-2026-94266)
Joshua Rogers discovered that libcurl had a use-after-free vulnerability during HTTP/2 uploads when handling RST_STREAM responses from the server. An attacker could possibly use this issue to cause curl to crash, resulting in a denial of service, or execute arbitrary code. (CVE-2026-92392)
References
| URL | Type | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-86409",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-86410",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-86412",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-86414",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-87862",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-87863",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-87864",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-87865",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92386",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92387",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92388",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92389",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92390",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92391",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92392",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "high",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-94266",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-107928",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-107929",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:26.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "curl",
"binary_version": "8.18.0-1ubuntu2.8"
},
{
"binary_name": "libcurl3t64-gnutls",
"binary_version": "8.18.0-1ubuntu2.8"
},
{
"binary_name": "libcurl4t64",
"binary_version": "8.18.0-1ubuntu2.8"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "curl",
"purl": "pkg:deb/ubuntu/curl@8.18.0-1ubuntu2.8?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "8.18.0-1ubuntu2.8"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"8.14.1-2ubuntu1",
"8.17.0-1ubuntu1",
"8.18.0-1ubuntu1",
"8.18.0-1ubuntu2",
"8.18.0-1ubuntu2.1",
"8.18.0-1ubuntu2.2",
"8.18.0-1ubuntu2.3",
"8.18.0-1ubuntu2.4",
"8.18.0-1ubuntu2.5",
"8.18.0-1ubuntu2.7"
]
}
],
"aliases": [],
"details": "It was discovered that curl, when built with GnuTLS support, had an\nout-of-bounds read in the WebSocket send path. An attacker could\npossibly use this issue to obtain sensitive information.\n(CVE-2026-107928)\n\nMaksim discovered that curl did not correctly include the interface\nbinding in connection reuse decisions when CURLOPT_INTERFACE was used.\nAn attacker could possibly use this issue to cause connections to go\nout from an unintended source address. (CVE-2026-107929)\n\nStanislav Fort discovered that curl did not properly clear AWS SigV4\nauthentication state when CURLOPT_AWS_SIGV4 was set to NULL. An\nattacker could possibly use this issue to obtain sensitive information.\n(CVE-2026-86409)\n\nStanislav Fort discovered that the curl command line tool did not set\nSSH host verification options when following redirects to SFTP or SCP\nURLs. An attacker could possibly use this issue to perform\nmachine-in-the-middle attacks. (CVE-2026-86410)\n\nStanislav Fort discovered that curl did not properly handle cookie jar\nentries that could not be reloaded. An attacker could possibly use this\nissue to cause a denial of service. (CVE-2026-86412)\n\nStanislav Fort discovered that an HTTP proxy could trick libcurl into\nsending credentials to the proxy itself by responding to a CONNECT\nrequest with an unexpected authentication challenge. An attacker could\npossibly use this issue to obtain sensitive information.\n(CVE-2026-86414)\n\nStanislav Fort discovered that curl did not correctly handle HSTS\nentries when an includeSubDomains parent entry was imported before a\nlonger-lived child entry. An attacker could possibly use this issue to\ncause curl to use unencrypted HTTP connections. (CVE-2026-87862)\n\nStanislav Fort discovered that curl did not properly handle HSTS\nmax-age values that exceeded calendar time structure bounds. An\nattacker could possibly use this issue to cause a denial of service or\ndata loss. (CVE-2026-87863)\n\nStanislav Fort discovered that curl did not properly handle IMAP APPEND\ncommands when CURLOPT_CRLF was enabled, allowing overflow bytes to be\ninterpreted as pipelined commands. An authenticated attacker could\npossibly use this issue to inject arbitrary IMAP commands.\n(CVE-2026-87864)\n\nBobbeh Rhino discovered that libcurl, when used with libssh2 and a\nhashed known_hosts file, could misreport a host key mismatch as a\nmissing key. An attacker could possibly use this issue to perform\nmachine-in-the-middle attacks. (CVE-2026-87865)\n\nJoshua Rogers discovered that curl did not properly handle long cookie\nentries written to a Netscape cookie jar. An attacker could possibly\nuse this issue to cause a denial of service. (CVE-2026-92386)\n\nJoshua Rogers discovered that a malicious FTP, IMAP, POP3, or SMTP\nserver could cause libcurl to block indefinitely by omitting the final\ncontrol-response line. An attacker could possibly use this issue to\ncause a denial of service. (CVE-2026-92387)\n\nJoshua Rogers discovered that libcurl had a use-after-free\nvulnerability in the FTP wildcard matching code. An attacker could\npossibly use this issue to cause curl to crash, resulting in a denial\nof service, or execute arbitrary code. (CVE-2026-92388)\n\nJoshua Rogers discovered that libcurl\u0027s TFTP state machine did not\nproperly validate transfer directions, allowing a malicious server to\nforce the client into transmit mode. An attacker could possibly use\nthis issue to obtain sensitive information. (CVE-2026-92389)\n\nJoshua Rogers discovered that curl did not properly enforce its file\noverwrite protection when using --remote-header-name in certain\ncircumstances. An attacker could possibly use this issue to overwrite\nlocal files. (CVE-2026-92390)\n\nJoshua Rogers discovered that curl had a stack overflow vulnerability\nwhen processing deeply nested MIME structures. An attacker could\npossibly use this issue to cause curl to crash, resulting in a denial\nof service. (CVE-2026-92391)\n\nJoshua Rogers discovered that libcurl could expose credentials in the\nURL returned by CURLINFO_EFFECTIVE_URL when credentials were retrieved\nfrom a .netrc file. An attacker could possibly use this issue to obtain\nsensitive information. (CVE-2026-94266)\n\nJoshua Rogers discovered that libcurl had a use-after-free\nvulnerability during HTTP/2 uploads when handling RST_STREAM responses\nfrom the server. An attacker could possibly use this issue to cause\ncurl to crash, resulting in a denial of service, or execute arbitrary\ncode. (CVE-2026-92392)",
"id": "USN-8927-1",
"modified": "2026-10-14T11:58:06Z",
"published": "2026-10-14T11:58:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8927-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-86409"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-86410"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-86412"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-86414"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-87862"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-87863"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-87864"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-87865"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-92386"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-92387"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-92388"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-92389"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-92390"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-92391"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-92392"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-94266"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-107928"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-107929"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "curl vulnerabilities",
"upstream": [
"UBUNTU-CVE-2026-86409",
"UBUNTU-CVE-2026-86410",
"UBUNTU-CVE-2026-86412",
"UBUNTU-CVE-2026-86414",
"UBUNTU-CVE-2026-87862",
"UBUNTU-CVE-2026-87863",
"UBUNTU-CVE-2026-87864",
"UBUNTU-CVE-2026-87865",
"UBUNTU-CVE-2026-92386",
"UBUNTU-CVE-2026-92387",
"UBUNTU-CVE-2026-92388",
"UBUNTU-CVE-2026-92389",
"UBUNTU-CVE-2026-92390",
"UBUNTU-CVE-2026-92391",
"UBUNTU-CVE-2026-92392",
"UBUNTU-CVE-2026-94266",
"UBUNTU-CVE-2026-107928",
"UBUNTU-CVE-2026-107929"
]
}
USN-8927-2 (UBUNTU-CVE-2026-86409)
Vulnerability from osv_ubuntu – Published: 2026-10-19 15:51 – Updated: 2026-10-19 15:51 – Source website
VLAI
Summary
curl vulnerabilities
Details
USN-8927-1 fixed vulnerabilities in curl. This update provides the corresponding fixes for Ubuntu 26.10.
Original advisory details:
It was discovered that curl, when built with GnuTLS support, had an out-of-bounds read in the WebSocket send path. An attacker could possibly use this issue to obtain sensitive information. (CVE-2026-107928)
Maksim discovered that curl did not correctly include the interface binding in connection reuse decisions when CURLOPT_INTERFACE was used. An attacker could possibly use this issue to cause connections to go out from an unintended source address. (CVE-2026-107929)
Stanislav Fort discovered that curl did not properly clear AWS SigV4 authentication state when CURLOPT_AWS_SIGV4 was set to NULL. An attacker could possibly use this issue to obtain sensitive information. (CVE-2026-86409)
Stanislav Fort discovered that the curl command line tool did not set SSH host verification options when following redirects to SFTP or SCP URLs. An attacker could possibly use this issue to perform machine-in-the-middle attacks. (CVE-2026-86410)
Stanislav Fort discovered that curl did not properly handle cookie jar entries that could not be reloaded. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-86412)
Stanislav Fort discovered that an HTTP proxy could trick libcurl into sending credentials to the proxy itself by responding to a CONNECT request with an unexpected authentication challenge. An attacker could possibly use this issue to obtain sensitive information. (CVE-2026-86414)
Stanislav Fort discovered that curl did not correctly handle HSTS entries when an includeSubDomains parent entry was imported before a longer-lived child entry. An attacker could possibly use this issue to cause curl to use unencrypted HTTP connections. (CVE-2026-87862)
Stanislav Fort discovered that curl did not properly handle HSTS max-age values that exceeded calendar time structure bounds. An attacker could possibly use this issue to cause a denial of service or data loss. (CVE-2026-87863)
Stanislav Fort discovered that curl did not properly handle IMAP APPEND commands when CURLOPT_CRLF was enabled, allowing overflow bytes to be interpreted as pipelined commands. An authenticated attacker could possibly use this issue to inject arbitrary IMAP commands. (CVE-2026-87864)
Bobbeh Rhino discovered that libcurl, when used with libssh2 and a hashed known_hosts file, could misreport a host key mismatch as a missing key. An attacker could possibly use this issue to perform machine-in-the-middle attacks. (CVE-2026-87865)
Joshua Rogers discovered that curl did not properly handle long cookie entries written to a Netscape cookie jar. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-92386)
Joshua Rogers discovered that a malicious FTP, IMAP, POP3, or SMTP server could cause libcurl to block indefinitely by omitting the final control-response line. An attacker could possibly use this issue to cause a denial of service. (CVE-2026-92387)
Joshua Rogers discovered that libcurl had a use-after-free vulnerability in the FTP wildcard matching code. An attacker could possibly use this issue to cause curl to crash, resulting in a denial of service, or execute arbitrary code. (CVE-2026-92388)
Joshua Rogers discovered that libcurl's TFTP state machine did not properly validate transfer directions, allowing a malicious server to force the client into transmit mode. An attacker could possibly use this issue to obtain sensitive information. (CVE-2026-92389)
Joshua Rogers discovered that curl did not properly enforce its file overwrite protection when using --remote-header-name in certain circumstances. An attacker could possibly use this issue to overwrite local files. (CVE-2026-92390)
Joshua Rogers discovered that curl had a stack overflow vulnerability when processing deeply nested MIME structures. An attacker could possibly use this issue to cause curl to crash, resulting in a denial of service. (CVE-2026-92391)
Joshua Rogers discovered that libcurl could expose credentials in the URL returned by CURLINFO_EFFECTIVE_URL when credentials were retrieved from a .netrc file. An attacker could possibly use this issue to obtain sensitive information. (CVE-2026-94266)
Joshua Rogers discovered that libcurl had a use-after-free vulnerability during HTTP/2 uploads when handling RST_STREAM responses from the server. An attacker could possibly use this issue to cause curl to crash, resulting in a denial of service, or execute arbitrary code. (CVE-2026-92392)
References
| URL | Type | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-86409",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-86410",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-86412",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-86414",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-87862",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-87863",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-87864",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-87865",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92386",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92387",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92388",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92389",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92390",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92391",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92392",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "high",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-94266",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-107928",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-107929",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:26.10"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "curl",
"binary_version": "8.20.0-2ubuntu11.1"
},
{
"binary_name": "libcurl3t64-gnutls",
"binary_version": "8.20.0-2ubuntu11.1"
},
{
"binary_name": "libcurl4t64",
"binary_version": "8.20.0-2ubuntu11.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.10",
"name": "curl",
"purl": "pkg:deb/ubuntu/curl@8.20.0-2ubuntu11.1?arch=source\u0026distro=stonking"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "8.20.0-2ubuntu11.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"8.18.0-1ubuntu2",
"8.20.0-2ubuntu1",
"8.20.0-2ubuntu3",
"8.20.0-2ubuntu10",
"8.20.0-2ubuntu11"
]
}
],
"aliases": [],
"details": "USN-8927-1 fixed vulnerabilities in curl. This update provides the\ncorresponding fixes for Ubuntu 26.10.\n\nOriginal advisory details:\n\n It was discovered that curl, when built with GnuTLS support, had an\n out-of-bounds read in the WebSocket send path. An attacker could\n possibly use this issue to obtain sensitive information.\n (CVE-2026-107928)\n\n Maksim discovered that curl did not correctly include the interface\n binding in connection reuse decisions when CURLOPT_INTERFACE was used.\n An attacker could possibly use this issue to cause connections to go\n out from an unintended source address. (CVE-2026-107929)\n\n Stanislav Fort discovered that curl did not properly clear AWS SigV4\n authentication state when CURLOPT_AWS_SIGV4 was set to NULL. An\n attacker could possibly use this issue to obtain sensitive information.\n (CVE-2026-86409)\n\n Stanislav Fort discovered that the curl command line tool did not set\n SSH host verification options when following redirects to SFTP or SCP\n URLs. An attacker could possibly use this issue to perform\n machine-in-the-middle attacks. (CVE-2026-86410)\n\n Stanislav Fort discovered that curl did not properly handle cookie jar\n entries that could not be reloaded. An attacker could possibly use this\n issue to cause a denial of service. (CVE-2026-86412)\n\n Stanislav Fort discovered that an HTTP proxy could trick libcurl into\n sending credentials to the proxy itself by responding to a CONNECT\n request with an unexpected authentication challenge. An attacker could\n possibly use this issue to obtain sensitive information.\n (CVE-2026-86414)\n\n Stanislav Fort discovered that curl did not correctly handle HSTS\n entries when an includeSubDomains parent entry was imported before a\n longer-lived child entry. An attacker could possibly use this issue to\n cause curl to use unencrypted HTTP connections. (CVE-2026-87862)\n\n Stanislav Fort discovered that curl did not properly handle HSTS\n max-age values that exceeded calendar time structure bounds. An\n attacker could possibly use this issue to cause a denial of service or\n data loss. (CVE-2026-87863)\n\n Stanislav Fort discovered that curl did not properly handle IMAP APPEND\n commands when CURLOPT_CRLF was enabled, allowing overflow bytes to be\n interpreted as pipelined commands. An authenticated attacker could\n possibly use this issue to inject arbitrary IMAP commands.\n (CVE-2026-87864)\n\n Bobbeh Rhino discovered that libcurl, when used with libssh2 and a\n hashed known_hosts file, could misreport a host key mismatch as a\n missing key. An attacker could possibly use this issue to perform\n machine-in-the-middle attacks. (CVE-2026-87865)\n\n Joshua Rogers discovered that curl did not properly handle long cookie\n entries written to a Netscape cookie jar. An attacker could possibly\n use this issue to cause a denial of service. (CVE-2026-92386)\n\n Joshua Rogers discovered that a malicious FTP, IMAP, POP3, or SMTP\n server could cause libcurl to block indefinitely by omitting the final\n control-response line. An attacker could possibly use this issue to\n cause a denial of service. (CVE-2026-92387)\n\n Joshua Rogers discovered that libcurl had a use-after-free\n vulnerability in the FTP wildcard matching code. An attacker could\n possibly use this issue to cause curl to crash, resulting in a denial\n of service, or execute arbitrary code. (CVE-2026-92388)\n\n Joshua Rogers discovered that libcurl\u0027s TFTP state machine did not\n properly validate transfer directions, allowing a malicious server to\n force the client into transmit mode. An attacker could possibly use\n this issue to obtain sensitive information. (CVE-2026-92389)\n\n Joshua Rogers discovered that curl did not properly enforce its file\n overwrite protection when using --remote-header-name in certain\n circumstances. An attacker could possibly use this issue to overwrite\n local files. (CVE-2026-92390)\n\n Joshua Rogers discovered that curl had a stack overflow vulnerability\n when processing deeply nested MIME structures. An attacker could\n possibly use this issue to cause curl to crash, resulting in a denial\n of service. (CVE-2026-92391)\n\n Joshua Rogers discovered that libcurl could expose credentials in the\n URL returned by CURLINFO_EFFECTIVE_URL when credentials were retrieved\n from a .netrc file. An attacker could possibly use this issue to obtain\n sensitive information. (CVE-2026-94266)\n\n Joshua Rogers discovered that libcurl had a use-after-free\n vulnerability during HTTP/2 uploads when handling RST_STREAM responses\n from the server. An attacker could possibly use this issue to cause\n curl to crash, resulting in a denial of service, or execute arbitrary\n code. (CVE-2026-92392)",
"id": "USN-8927-2",
"modified": "2026-10-19T15:51:17Z",
"published": "2026-10-19T15:51:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8927-2"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-86409"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-86410"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-86412"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-86414"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-87862"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-87863"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-87864"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-87865"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-92386"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-92387"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-92388"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-92389"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-92390"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-92391"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-92392"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-94266"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-107928"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-107929"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "curl vulnerabilities",
"upstream": [
"UBUNTU-CVE-2026-86409",
"UBUNTU-CVE-2026-86410",
"UBUNTU-CVE-2026-86412",
"UBUNTU-CVE-2026-86414",
"UBUNTU-CVE-2026-87862",
"UBUNTU-CVE-2026-87863",
"UBUNTU-CVE-2026-87864",
"UBUNTU-CVE-2026-87865",
"UBUNTU-CVE-2026-92386",
"UBUNTU-CVE-2026-92387",
"UBUNTU-CVE-2026-92388",
"UBUNTU-CVE-2026-92389",
"UBUNTU-CVE-2026-92390",
"UBUNTU-CVE-2026-92391",
"UBUNTU-CVE-2026-92392",
"UBUNTU-CVE-2026-94266",
"UBUNTU-CVE-2026-107928",
"UBUNTU-CVE-2026-107929"
]
}
USN-8932-1 (UBUNTU-CVE-2026-86409)
Vulnerability from osv_ubuntu – Published: 2026-10-14 19:26 – Updated: 2026-10-20 19:46 – Source website
VLAI
Summary
curl vulnerabilities
Details
Stanislav Fort discovered that curl did not properly clear AWS SigV4 authentication state when CURLOPT_AWS_SIGV4 was set to NULL. An attacker could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2026-86409)
Stanislav Fort discovered that an HTTP proxy could trick libcurl into sending credentials to the proxy itself by responding to a CONNECT request with an unexpected authentication challenge. An attacker could possibly use this issue to obtain sensitive information. (CVE-2026-86414)
Stanislav Fort discovered that curl did not correctly handle HSTS entries when an includeSubDomains parent entry was imported before a longer-lived child entry. An attacker could possibly use this issue to cause curl to use unencrypted HTTP connections. This issue only affected Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2026-87862)
Stanislav Fort discovered that curl did not properly handle HSTS max-age values that exceeded calendar time structure bounds. An attacker could possibly use this issue to cause a denial of service or data loss. This issue only affected Ubuntu 24.04 LTS. (CVE-2026-87863)
Stanislav Fort discovered that curl did not properly handle IMAP APPEND commands when CURLOPT_CRLF was enabled, allowing overflow bytes to be interpreted as pipelined commands. An authenticated attacker could possibly use this issue to inject arbitrary IMAP commands. (CVE-2026-87864)
Joshua Rogers discovered that libcurl had a use-after-free vulnerability in the FTP wildcard matching code. An attacker could possibly use this issue to cause curl to crash, resulting in a denial of service, or execute arbitrary code. (CVE-2026-92388)
Joshua Rogers discovered that libcurl's TFTP state machine did not properly validate transfer directions, allowing a malicious server to force the client into transmit mode. An attacker could possibly use this issue to obtain sensitive information. (CVE-2026-92389)
Joshua Rogers discovered that curl had a stack overflow vulnerability when processing deeply nested MIME structures. An attacker could possibly use this issue to cause curl to crash, resulting in a denial of service. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2026-92391)
Joshua Rogers discovered that libcurl could expose credentials in the URL returned by CURLINFO_EFFECTIVE_URL when credentials were retrieved from a .netrc file. An attacker could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2026-94266)
References
| URL | Type | |||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-86414",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-87864",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92388",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92389",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:14.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "curl",
"binary_version": "7.35.0-1ubuntu2.20+esm24"
},
{
"binary_name": "libcurl3",
"binary_version": "7.35.0-1ubuntu2.20+esm24"
},
{
"binary_name": "libcurl3-gnutls",
"binary_version": "7.35.0-1ubuntu2.20+esm24"
},
{
"binary_name": "libcurl3-nss",
"binary_version": "7.35.0-1ubuntu2.20+esm24"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"name": "curl",
"purl": "pkg:deb/ubuntu/curl@7.35.0-1ubuntu2.20+esm24?arch=source\u0026distro=esm-infra-legacy/trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "7.35.0-1ubuntu2.20+esm24"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"7.32.0-1ubuntu1",
"7.33.0-1ubuntu1",
"7.34.0-1ubuntu1",
"7.35.0-1ubuntu1",
"7.35.0-1ubuntu2",
"7.35.0-1ubuntu2.1",
"7.35.0-1ubuntu2.2",
"7.35.0-1ubuntu2.3",
"7.35.0-1ubuntu2.5",
"7.35.0-1ubuntu2.6",
"7.35.0-1ubuntu2.7",
"7.35.0-1ubuntu2.8",
"7.35.0-1ubuntu2.9",
"7.35.0-1ubuntu2.10",
"7.35.0-1ubuntu2.11",
"7.35.0-1ubuntu2.12",
"7.35.0-1ubuntu2.13",
"7.35.0-1ubuntu2.14",
"7.35.0-1ubuntu2.15",
"7.35.0-1ubuntu2.16",
"7.35.0-1ubuntu2.17",
"7.35.0-1ubuntu2.19",
"7.35.0-1ubuntu2.20",
"7.35.0-1ubuntu2.20+esm2",
"7.35.0-1ubuntu2.20+esm3",
"7.35.0-1ubuntu2.20+esm4",
"7.35.0-1ubuntu2.20+esm5",
"7.35.0-1ubuntu2.20+esm6",
"7.35.0-1ubuntu2.20+esm7",
"7.35.0-1ubuntu2.20+esm8",
"7.35.0-1ubuntu2.20+esm9",
"7.35.0-1ubuntu2.20+esm10",
"7.35.0-1ubuntu2.20+esm11",
"7.35.0-1ubuntu2.20+esm12",
"7.35.0-1ubuntu2.20+esm13",
"7.35.0-1ubuntu2.20+esm14",
"7.35.0-1ubuntu2.20+esm15",
"7.35.0-1ubuntu2.20+esm16",
"7.35.0-1ubuntu2.20+esm17",
"7.35.0-1ubuntu2.20+esm18",
"7.35.0-1ubuntu2.20+esm19",
"7.35.0-1ubuntu2.20+esm20",
"7.35.0-1ubuntu2.20+esm21",
"7.35.0-1ubuntu2.20+esm22",
"7.35.0-1ubuntu2.20+esm23"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-86414",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-87864",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92388",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92389",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:16.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "curl",
"binary_version": "7.47.0-1ubuntu2.19+esm21"
},
{
"binary_name": "libcurl3",
"binary_version": "7.47.0-1ubuntu2.19+esm21"
},
{
"binary_name": "libcurl3-gnutls",
"binary_version": "7.47.0-1ubuntu2.19+esm21"
},
{
"binary_name": "libcurl3-nss",
"binary_version": "7.47.0-1ubuntu2.19+esm21"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "curl",
"purl": "pkg:deb/ubuntu/curl@7.47.0-1ubuntu2.19+esm21?arch=source\u0026distro=esm-infra-legacy/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "7.47.0-1ubuntu2.19+esm21"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"7.43.0-1ubuntu2",
"7.45.0-1ubuntu1",
"7.46.0-1ubuntu1",
"7.47.0-1ubuntu1",
"7.47.0-1ubuntu2",
"7.47.0-1ubuntu2.1",
"7.47.0-1ubuntu2.2",
"7.47.0-1ubuntu2.3",
"7.47.0-1ubuntu2.4",
"7.47.0-1ubuntu2.5",
"7.47.0-1ubuntu2.6",
"7.47.0-1ubuntu2.7",
"7.47.0-1ubuntu2.8",
"7.47.0-1ubuntu2.9",
"7.47.0-1ubuntu2.11",
"7.47.0-1ubuntu2.12",
"7.47.0-1ubuntu2.13",
"7.47.0-1ubuntu2.14",
"7.47.0-1ubuntu2.15",
"7.47.0-1ubuntu2.16",
"7.47.0-1ubuntu2.18",
"7.47.0-1ubuntu2.19",
"7.47.0-1ubuntu2.19+esm1",
"7.47.0-1ubuntu2.19+esm2",
"7.47.0-1ubuntu2.19+esm3",
"7.47.0-1ubuntu2.19+esm4",
"7.47.0-1ubuntu2.19+esm5",
"7.47.0-1ubuntu2.19+esm6",
"7.47.0-1ubuntu2.19+esm7",
"7.47.0-1ubuntu2.19+esm8",
"7.47.0-1ubuntu2.19+esm9",
"7.47.0-1ubuntu2.19+esm10",
"7.47.0-1ubuntu2.19+esm11",
"7.47.0-1ubuntu2.19+esm12",
"7.47.0-1ubuntu2.19+esm13",
"7.47.0-1ubuntu2.19+esm15",
"7.47.0-1ubuntu2.19+esm16",
"7.47.0-1ubuntu2.19+esm17",
"7.47.0-1ubuntu2.19+esm18",
"7.47.0-1ubuntu2.19+esm20"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-86414",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-87864",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92388",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92389",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92391",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:18.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
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{
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{
"binary_name": "libcurl3-nss",
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{
"binary_name": "libcurl4",
"binary_version": "7.58.0-2ubuntu3.24+esm15"
}
]
},
"package": {
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"name": "curl",
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"ranges": [
{
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],
"versions": [
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"7.58.0-2ubuntu3.16",
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"7.58.0-2ubuntu3.18",
"7.58.0-2ubuntu3.19",
"7.58.0-2ubuntu3.20",
"7.58.0-2ubuntu3.21",
"7.58.0-2ubuntu3.22",
"7.58.0-2ubuntu3.23",
"7.58.0-2ubuntu3.24",
"7.58.0-2ubuntu3.24+esm1",
"7.58.0-2ubuntu3.24+esm2",
"7.58.0-2ubuntu3.24+esm3",
"7.58.0-2ubuntu3.24+esm4",
"7.58.0-2ubuntu3.24+esm5",
"7.58.0-2ubuntu3.24+esm7",
"7.58.0-2ubuntu3.24+esm8",
"7.58.0-2ubuntu3.24+esm9",
"7.58.0-2ubuntu3.24+esm10",
"7.58.0-2ubuntu3.24+esm11",
"7.58.0-2ubuntu3.24+esm12",
"7.58.0-2ubuntu3.24+esm14"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-86414",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-87864",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92388",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92389",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92391",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-94266",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:20.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "curl",
"binary_version": "7.68.0-1ubuntu2.25+esm10"
},
{
"binary_name": "libcurl3-gnutls",
"binary_version": "7.68.0-1ubuntu2.25+esm10"
},
{
"binary_name": "libcurl3-nss",
"binary_version": "7.68.0-1ubuntu2.25+esm10"
},
{
"binary_name": "libcurl4",
"binary_version": "7.68.0-1ubuntu2.25+esm10"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "curl",
"purl": "pkg:deb/ubuntu/curl@7.68.0-1ubuntu2.25+esm10?arch=source\u0026distro=esm-infra/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "7.68.0-1ubuntu2.25+esm10"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"7.65.3-1ubuntu3",
"7.65.3-1ubuntu4",
"7.66.0-1ubuntu1",
"7.67.0-2ubuntu1",
"7.68.0-1ubuntu1",
"7.68.0-1ubuntu2",
"7.68.0-1ubuntu2.1",
"7.68.0-1ubuntu2.2",
"7.68.0-1ubuntu2.4",
"7.68.0-1ubuntu2.5",
"7.68.0-1ubuntu2.6",
"7.68.0-1ubuntu2.7",
"7.68.0-1ubuntu2.10",
"7.68.0-1ubuntu2.11",
"7.68.0-1ubuntu2.12",
"7.68.0-1ubuntu2.13",
"7.68.0-1ubuntu2.14",
"7.68.0-1ubuntu2.15",
"7.68.0-1ubuntu2.16",
"7.68.0-1ubuntu2.18",
"7.68.0-1ubuntu2.19",
"7.68.0-1ubuntu2.20",
"7.68.0-1ubuntu2.21",
"7.68.0-1ubuntu2.22",
"7.68.0-1ubuntu2.23",
"7.68.0-1ubuntu2.24",
"7.68.0-1ubuntu2.25",
"7.68.0-1ubuntu2.25+esm2",
"7.68.0-1ubuntu2.25+esm3",
"7.68.0-1ubuntu2.25+esm4",
"7.68.0-1ubuntu2.25+esm5",
"7.68.0-1ubuntu2.25+esm6",
"7.68.0-1ubuntu2.25+esm7",
"7.68.0-1ubuntu2.25+esm9"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-86409",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-86414",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-87862",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-87864",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92388",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92389",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92391",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-94266",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:22.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "curl",
"binary_version": "7.81.0-1ubuntu1.30"
},
{
"binary_name": "libcurl3-gnutls",
"binary_version": "7.81.0-1ubuntu1.30"
},
{
"binary_name": "libcurl3-nss",
"binary_version": "7.81.0-1ubuntu1.30"
},
{
"binary_name": "libcurl4",
"binary_version": "7.81.0-1ubuntu1.30"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "curl",
"purl": "pkg:deb/ubuntu/curl@7.81.0-1ubuntu1.30?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "7.81.0-1ubuntu1.30"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"7.74.0-1.3ubuntu2",
"7.74.0-1.3ubuntu3",
"7.80.0-3",
"7.81.0-1",
"7.81.0-1ubuntu1.1",
"7.81.0-1ubuntu1.2",
"7.81.0-1ubuntu1.3",
"7.81.0-1ubuntu1.4",
"7.81.0-1ubuntu1.6",
"7.81.0-1ubuntu1.7",
"7.81.0-1ubuntu1.8",
"7.81.0-1ubuntu1.10",
"7.81.0-1ubuntu1.11",
"7.81.0-1ubuntu1.13",
"7.81.0-1ubuntu1.14",
"7.81.0-1ubuntu1.15",
"7.81.0-1ubuntu1.16",
"7.81.0-1ubuntu1.17",
"7.81.0-1ubuntu1.18",
"7.81.0-1ubuntu1.19",
"7.81.0-1ubuntu1.20",
"7.81.0-1ubuntu1.21",
"7.81.0-1ubuntu1.22",
"7.81.0-1ubuntu1.23",
"7.81.0-1ubuntu1.24",
"7.81.0-1ubuntu1.25",
"7.81.0-1ubuntu1.26",
"7.81.0-1ubuntu1.27",
"7.81.0-1ubuntu1.29"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-86409",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-86414",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-87862",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-87863",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-87864",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92388",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92389",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-92391",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-94266",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:24.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "curl",
"binary_version": "8.5.0-2ubuntu10.16"
},
{
"binary_name": "libcurl3t64-gnutls",
"binary_version": "8.5.0-2ubuntu10.16"
},
{
"binary_name": "libcurl4t64",
"binary_version": "8.5.0-2ubuntu10.16"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "curl",
"purl": "pkg:deb/ubuntu/curl@8.5.0-2ubuntu10.16?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "8.5.0-2ubuntu10.16"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"8.2.1-1ubuntu3",
"8.2.1-1ubuntu3.1",
"8.4.0-2ubuntu1",
"8.5.0-2ubuntu1",
"8.5.0-2ubuntu2",
"8.5.0-2ubuntu8",
"8.5.0-2ubuntu9",
"8.5.0-2ubuntu10",
"8.5.0-2ubuntu10.1",
"8.5.0-2ubuntu10.2",
"8.5.0-2ubuntu10.3",
"8.5.0-2ubuntu10.4",
"8.5.0-2ubuntu10.5",
"8.5.0-2ubuntu10.6",
"8.5.0-2ubuntu10.7",
"8.5.0-2ubuntu10.8",
"8.5.0-2ubuntu10.9",
"8.5.0-2ubuntu10.10",
"8.5.0-2ubuntu10.11",
"8.5.0-2ubuntu10.12",
"8.5.0-2ubuntu10.13",
"8.5.0-2ubuntu10.15"
]
}
],
"aliases": [],
"details": "Stanislav Fort discovered that curl did not properly clear AWS SigV4\nauthentication state when CURLOPT_AWS_SIGV4 was set to NULL. An attacker\ncould possibly use this issue to obtain sensitive information. This\nissue only affected Ubuntu 22.04 LTS and Ubuntu 24.04 LTS.\n(CVE-2026-86409)\n\nStanislav Fort discovered that an HTTP proxy could trick libcurl into\nsending credentials to the proxy itself by responding to a CONNECT\nrequest with an unexpected authentication challenge. An attacker could\npossibly use this issue to obtain sensitive information.\n(CVE-2026-86414)\n\nStanislav Fort discovered that curl did not correctly handle HSTS\nentries when an includeSubDomains parent entry was imported before a\nlonger-lived child entry. An attacker could possibly use this issue to\ncause curl to use unencrypted HTTP connections. This issue only affected\nUbuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2026-87862)\n\nStanislav Fort discovered that curl did not properly handle HSTS max-age\nvalues that exceeded calendar time structure bounds. An attacker could\npossibly use this issue to cause a denial of service or data loss. This\nissue only affected Ubuntu 24.04 LTS. (CVE-2026-87863)\n\nStanislav Fort discovered that curl did not properly handle IMAP APPEND\ncommands when CURLOPT_CRLF was enabled, allowing overflow bytes to be\ninterpreted as pipelined commands. An authenticated attacker could\npossibly use this issue to inject arbitrary IMAP commands.\n(CVE-2026-87864)\n\nJoshua Rogers discovered that libcurl had a use-after-free vulnerability\nin the FTP wildcard matching code. An attacker could possibly use this\nissue to cause curl to crash, resulting in a denial of service, or\nexecute arbitrary code. (CVE-2026-92388)\n\nJoshua Rogers discovered that libcurl\u0027s TFTP state machine did not\nproperly validate transfer directions, allowing a malicious server to\nforce the client into transmit mode. An attacker could possibly use this\nissue to obtain sensitive information. (CVE-2026-92389)\n\nJoshua Rogers discovered that curl had a stack overflow vulnerability\nwhen processing deeply nested MIME structures. An attacker could\npossibly use this issue to cause curl to crash, resulting in a denial of\nservice. This issue only affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS,\nUbuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2026-92391)\n\nJoshua Rogers discovered that libcurl could expose credentials in the\nURL returned by CURLINFO_EFFECTIVE_URL when credentials were retrieved\nfrom a .netrc file. An attacker could possibly use this issue to obtain\nsensitive information. This issue only affected Ubuntu 20.04 LTS, Ubuntu\n22.04 LTS and Ubuntu 24.04 LTS. (CVE-2026-94266)",
"id": "USN-8932-1",
"modified": "2026-10-20T19:46:05Z",
"published": "2026-10-14T19:26:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8932-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-86409"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-86414"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-87862"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-87863"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-87864"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-92388"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-92389"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-92391"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-94266"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "curl vulnerabilities",
"upstream": [
"UBUNTU-CVE-2026-86409",
"UBUNTU-CVE-2026-86414",
"UBUNTU-CVE-2026-87862",
"UBUNTU-CVE-2026-87863",
"UBUNTU-CVE-2026-87864",
"UBUNTU-CVE-2026-92388",
"UBUNTU-CVE-2026-92389",
"UBUNTU-CVE-2026-92391",
"UBUNTU-CVE-2026-94266"
]
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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