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CERTFR-2026-AVI-1307
Vulnerability from certfr_avis - Published: 2026-10-14 - Updated: 2026-10-14
De multiples vulnérabilités ont été découvertes dans Curl. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, un déni de service à distance et une atteinte à la confidentialité des données.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Curl | cURL et libcurl | Curl versions antérieures à 8.23.0 |
References
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Curl versions ant\u00e9rieures \u00e0 8.23.0",
"product": {
"name": "cURL et libcurl",
"vendor": {
"name": "Curl",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-94265",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-94265"
},
{
"name": "CVE-2026-87863",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-87863"
},
{
"name": "CVE-2026-107928",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-107928"
},
{
"name": "CVE-2026-86414",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-86414"
},
{
"name": "CVE-2026-86411",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-86411"
},
{
"name": "CVE-2026-87864",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-87864"
},
{
"name": "CVE-2020-8177",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-8177"
},
{
"name": "CVE-2026-92392",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-92392"
},
{
"name": "CVE-2026-86413",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-86413"
},
{
"name": "CVE-2026-107929",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-107929"
},
{
"name": "CVE-2026-92389",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-92389"
},
{
"name": "CVE-2026-87861",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-87861"
},
{
"name": "CVE-2026-92386",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-92386"
},
{
"name": "CVE-2026-92387",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-92387"
},
{
"name": "CVE-2026-12064",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-12064"
},
{
"name": "CVE-2026-92391",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-92391"
},
{
"name": "CVE-2026-86410",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-86410"
},
{
"name": "CVE-2026-86415",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-86415"
},
{
"name": "CVE-2026-87865",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-87865"
},
{
"name": "CVE-2026-87862",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-87862"
},
{
"name": "CVE-2026-94266",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-94266"
},
{
"name": "CVE-2026-92388",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-92388"
},
{
"name": "CVE-2026-86412",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-86412"
},
{
"name": "CVE-2026-87866",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-87866"
},
{
"name": "CVE-2026-92390",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-92390"
},
{
"name": "CVE-2026-86409",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-86409"
}
],
"initial_release_date": "2026-10-14T00:00:00",
"last_revision_date": "2026-10-14T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-1307",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-10-14T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Curl. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire \u00e0 distance, un d\u00e9ni de service \u00e0 distance et une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans Curl",
"vendor_advisories": [
{
"published_at": "2026-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 Curl CVE-2026-86412",
"url": "https://curl.se/docs/CVE-2026-86412.html"
},
{
"published_at": "2026-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 Curl CVE-2026-107928",
"url": "https://curl.se/docs/CVE-2026-107928.html"
},
{
"published_at": "2026-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 Curl CVE-2026-92388",
"url": "https://curl.se/docs/CVE-2026-92388.html"
},
{
"published_at": "2026-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 Curl CVE-2026-92386",
"url": "https://curl.se/docs/CVE-2026-92386.html"
},
{
"published_at": "2026-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 Curl CVE-2026-86411",
"url": "https://curl.se/docs/CVE-2026-86411.html"
},
{
"published_at": "2026-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 Curl CVE-2026-94265",
"url": "https://curl.se/docs/CVE-2026-94265.html"
},
{
"published_at": "2026-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 Curl CVE-2026-87862",
"url": "https://curl.se/docs/CVE-2026-87862.html"
},
{
"published_at": "2026-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 Curl CVE-2026-86410",
"url": "https://curl.se/docs/CVE-2026-86410.html"
},
{
"published_at": "2026-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 Curl CVE-2026-107929",
"url": "https://curl.se/docs/CVE-2026-107929.html"
},
{
"published_at": "2026-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 Curl CVE-2026-92387",
"url": "https://curl.se/docs/CVE-2026-92387.html"
},
{
"published_at": "2026-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 Curl CVE-2026-87864",
"url": "https://curl.se/docs/CVE-2026-87864.html"
},
{
"published_at": "2026-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 Curl CVE-2026-87865",
"url": "https://curl.se/docs/CVE-2026-87865.html"
},
{
"published_at": "2026-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 Curl CVE-2026-86414",
"url": "https://curl.se/docs/CVE-2026-86414.html"
},
{
"published_at": "2026-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 Curl CVE-2026-92392",
"url": "https://curl.se/docs/CVE-2026-92392.html"
},
{
"published_at": "2026-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 Curl CVE-2026-87866",
"url": "https://curl.se/docs/CVE-2026-87866.html"
},
{
"published_at": "2026-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 Curl CVE-2026-92389",
"url": "https://curl.se/docs/CVE-2026-92389.html"
},
{
"published_at": "2026-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 Curl CVE-2026-86409",
"url": "https://curl.se/docs/CVE-2026-86409.html"
},
{
"published_at": "2026-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 Curl CVE-2026-92391",
"url": "https://curl.se/docs/CVE-2026-92391.html"
},
{
"published_at": "2026-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 Curl CVE-2026-86413",
"url": "https://curl.se/docs/CVE-2026-86413.html"
},
{
"published_at": "2026-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 Curl CVE-2026-86415",
"url": "https://curl.se/docs/CVE-2026-86415.html"
},
{
"published_at": "2026-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 Curl CVE-2026-94266",
"url": "https://curl.se/docs/CVE-2026-94266.html"
},
{
"published_at": "2026-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 Curl CVE-2026-87863",
"url": "https://curl.se/docs/CVE-2026-87863.html"
},
{
"published_at": "2026-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 Curl CVE-2026-87861",
"url": "https://curl.se/docs/CVE-2026-87861.html"
},
{
"published_at": "2026-10-14",
"title": "Bulletin de s\u00e9curit\u00e9 Curl CVE-2026-92390",
"url": "https://curl.se/docs/CVE-2026-92390.html"
}
]
}
RHSA-2026:82895
Vulnerability from csaf_redhat - Published: 2026-10-14 11:39 - Updated: 2026-10-17 12:55Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Severity
Important
Scope
26 vulnerabilities in this advisory, including CVE-2026-86409.
CVE-2026-86409
A flaw was found in curl. When an application attempts to disable Amazon Web Services Signature Version 4 (AWS SigV4) authentication on a reused connection handle, curl fails to clear the setting as expected. If the application subsequently directs a request to an untrusted or attacker-controlled server using the same handle, curl unintentionally transmits the signed authorization header. This flaw allows a remote attacker to obtain access key identifiers and request signatures, leading to information disclosure.
5.3 (Medium)
Fixed: 13 products
https://access.redhat.com/errata/RHSA-2026:82895
UBUNTU-CVE-2026-86409 (CVE-2026-86409)
Vulnerability from osv_ubuntu – Published: 2026-10-14 06:00 – Updated: 2026-10-14 06:00 – Source website
VLAI
Details
Setting CURLOPT_AWS_SIGV4 to NULL does not disable SigV4 authentication, contrary to expectations and documentation. A subsequent transfer on the same handle still sends an Authorization: AWS4-HMAC-SHA256 header to whatever URL is set next, leaking state information.
Severity
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"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"
}
],
"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",
"7.81.0-1ubuntu1.30"
]
},
{
"ecosystem_specific": {
"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"
}
],
"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",
"8.5.0-2ubuntu10.16"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "curl",
"binary_version": "8.20.0-2ubuntu11"
},
{
"binary_name": "libcurl3t64-gnutls",
"binary_version": "8.20.0-2ubuntu11"
},
{
"binary_name": "libcurl4t64",
"binary_version": "8.20.0-2ubuntu11"
}
],
"priority_reason": "Upstream defined this as low severity"
},
"package": {
"ecosystem": "Ubuntu:26.10",
"name": "curl",
"purl": "pkg:deb/ubuntu/curl@8.20.0-2ubuntu11?arch=source\u0026distro=stonking"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"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": "Setting `CURLOPT_AWS_SIGV4` to NULL does not disable SigV4 authentication, contrary to expectations and documentation. A subsequent transfer on the same handle still sends an `Authorization: AWS4-HMAC-SHA256` header to whatever URL is set next, leaking state information.",
"id": "UBUNTU-CVE-2026-86409",
"modified": "2026-10-14T06:00:00Z",
"published": "2026-10-14T06:00:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-86409"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-86409"
},
{
"type": "REPORT",
"url": "https://curl.se/docs/CVE-2026-86409.html"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8927-1"
}
],
"related": [
"USN-8927-1"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "low",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-86409"
]
}