USN-8890-1 (UBUNTU-CVE-2026-4271)
Vulnerability from osv_ubuntu – Published: 2026-10-06 16:43 – Updated: 2026-10-06 16:43 – Source website
VLAI
Summary
libsoup2.4, libsoup3 vulnerabilities
Details
It was discovered that libsoup incorrectly handled certain HTTP/2 requests. A remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-4271)
It was discovered that libsoup incorrectly handled certain HTTPS proxy connections. A remote attacker could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-5119)
It was discovered that libsoup incorrectly parsed certain chunked HTTP requests. A remote attacker could possibly use this issue to bypass security controls. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-6324)
It was discovered that libsoup incorrectly handled proxy authentication credentials. A remote attacker could possibly use this issue to obtain sensitive information. (CVE-2026-66339)
It was discovered that libsoup incorrectly handled certain HTTP Range headers. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2026-77014, CVE-2026-77680)
It was discovered that libsoup incorrectly handled certain HTTP/2 connections. A remote attacker could possibly use this issue to obtain sensitive information or execute arbitrary code. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-85197)
It was discovered that libsoup incorrectly handled certain HTTP/2 transfers. A remote attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-85534)
References
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-66339",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-77014",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-77680",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "medium",
"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": "gir1.2-soup-2.4",
"binary_version": "2.52.2-1ubuntu0.3+esm8"
},
{
"binary_name": "libsoup-gnome2.4-1",
"binary_version": "2.52.2-1ubuntu0.3+esm8"
},
{
"binary_name": "libsoup2.4-1",
"binary_version": "2.52.2-1ubuntu0.3+esm8"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "libsoup2.4",
"purl": "pkg:deb/ubuntu/libsoup2.4@2.52.2-1ubuntu0.3+esm8?arch=source\u0026distro=esm-infra-legacy/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.52.2-1ubuntu0.3+esm8"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.50.0-2debian1",
"2.52.1-1",
"2.52.2-1",
"2.52.2-1ubuntu0.1",
"2.52.2-1ubuntu0.2",
"2.52.2-1ubuntu0.3",
"2.52.2-1ubuntu0.3+esm1",
"2.52.2-1ubuntu0.3+esm2",
"2.52.2-1ubuntu0.3+esm3",
"2.52.2-1ubuntu0.3+esm4",
"2.52.2-1ubuntu0.3+esm5",
"2.52.2-1ubuntu0.3+esm6",
"2.52.2-1ubuntu0.3+esm7"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-66339",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-77014",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-77680",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:18.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "gir1.2-soup-2.4",
"binary_version": "2.62.1-1ubuntu0.4+esm9"
},
{
"binary_name": "libsoup-gnome2.4-1",
"binary_version": "2.62.1-1ubuntu0.4+esm9"
},
{
"binary_name": "libsoup2.4-1",
"binary_version": "2.62.1-1ubuntu0.4+esm9"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "libsoup2.4",
"purl": "pkg:deb/ubuntu/libsoup2.4@2.62.1-1ubuntu0.4+esm9?arch=source\u0026distro=esm-infra/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.62.1-1ubuntu0.4+esm9"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.60.1-1",
"2.60.2-1",
"2.60.2-2",
"2.60.3-1",
"2.61.90-1",
"2.62.0-1",
"2.62.1-1",
"2.62.1-1ubuntu0.1",
"2.62.1-1ubuntu0.3",
"2.62.1-1ubuntu0.4",
"2.62.1-1ubuntu0.4+esm1",
"2.62.1-1ubuntu0.4+esm2",
"2.62.1-1ubuntu0.4+esm3",
"2.62.1-1ubuntu0.4+esm4",
"2.62.1-1ubuntu0.4+esm5",
"2.62.1-1ubuntu0.4+esm6",
"2.62.1-1ubuntu0.4+esm7",
"2.62.1-1ubuntu0.4+esm8"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-66339",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-77014",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-77680",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:20.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "gir1.2-soup-2.4",
"binary_version": "2.70.0-1ubuntu0.5+esm4"
},
{
"binary_name": "libsoup-gnome2.4-1",
"binary_version": "2.70.0-1ubuntu0.5+esm4"
},
{
"binary_name": "libsoup2.4-1",
"binary_version": "2.70.0-1ubuntu0.5+esm4"
},
{
"binary_name": "libsoup2.4-tests",
"binary_version": "2.70.0-1ubuntu0.5+esm4"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"name": "libsoup2.4",
"purl": "pkg:deb/ubuntu/libsoup2.4@2.70.0-1ubuntu0.5+esm4?arch=source\u0026distro=esm-infra/focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.70.0-1ubuntu0.5+esm4"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.68.2-0ubuntu1",
"2.68.2-1",
"2.68.2-2",
"2.68.2-2build2",
"2.69.90-1",
"2.70.0-1",
"2.70.0-1ubuntu0.1",
"2.70.0-1ubuntu0.2",
"2.70.0-1ubuntu0.3",
"2.70.0-1ubuntu0.4",
"2.70.0-1ubuntu0.5",
"2.70.0-1ubuntu0.5+esm1",
"2.70.0-1ubuntu0.5+esm2",
"2.70.0-1ubuntu0.5+esm3"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-66339",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-77014",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-77680",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:22.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "gir1.2-soup-2.4",
"binary_version": "2.74.2-3ubuntu0.9"
},
{
"binary_name": "libsoup-gnome2.4-1",
"binary_version": "2.74.2-3ubuntu0.9"
},
{
"binary_name": "libsoup2.4-1",
"binary_version": "2.74.2-3ubuntu0.9"
},
{
"binary_name": "libsoup2.4-common",
"binary_version": "2.74.2-3ubuntu0.9"
},
{
"binary_name": "libsoup2.4-tests",
"binary_version": "2.74.2-3ubuntu0.9"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "libsoup2.4",
"purl": "pkg:deb/ubuntu/libsoup2.4@2.74.2-3ubuntu0.9?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.74.2-3ubuntu0.9"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.72.0-3ubuntu3",
"2.74.1-1",
"2.74.2-2",
"2.74.2-3",
"2.74.2-3ubuntu0.1",
"2.74.2-3ubuntu0.2",
"2.74.2-3ubuntu0.3",
"2.74.2-3ubuntu0.4",
"2.74.2-3ubuntu0.5",
"2.74.2-3ubuntu0.6",
"2.74.2-3ubuntu0.7",
"2.74.2-3ubuntu0.8"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-5119",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-6324",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-66339",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-77014",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-77680",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-85197",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-85534",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:22.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "gir1.2-soup-3.0",
"binary_version": "3.0.7-0ubuntu1+esm9"
},
{
"binary_name": "libsoup-3.0-0",
"binary_version": "3.0.7-0ubuntu1+esm9"
},
{
"binary_name": "libsoup-3.0-common",
"binary_version": "3.0.7-0ubuntu1+esm9"
},
{
"binary_name": "libsoup-3.0-tests",
"binary_version": "3.0.7-0ubuntu1+esm9"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:22.04:LTS",
"name": "libsoup3",
"purl": "pkg:deb/ubuntu/libsoup3@3.0.7-0ubuntu1+esm9?arch=source\u0026distro=esm-apps/jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.7-0ubuntu1+esm9"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.0.4-2",
"3.0.4-3",
"3.0.5-1",
"3.0.7-0ubuntu1",
"3.0.7-0ubuntu1+esm1",
"3.0.7-0ubuntu1+esm2",
"3.0.7-0ubuntu1+esm3",
"3.0.7-0ubuntu1+esm4",
"3.0.7-0ubuntu1+esm5",
"3.0.7-0ubuntu1+esm6",
"3.0.7-0ubuntu1+esm7",
"3.0.7-0ubuntu1+esm8"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-4271",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-5119",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-6324",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-66339",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-77014",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-77680",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-85197",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-85534",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:24.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "gir1.2-soup-2.4",
"binary_version": "2.74.3-6ubuntu1.9"
},
{
"binary_name": "libsoup-2.4-1",
"binary_version": "2.74.3-6ubuntu1.9"
},
{
"binary_name": "libsoup-gnome-2.4-1",
"binary_version": "2.74.3-6ubuntu1.9"
},
{
"binary_name": "libsoup2.4-common",
"binary_version": "2.74.3-6ubuntu1.9"
},
{
"binary_name": "libsoup2.4-tests",
"binary_version": "2.74.3-6ubuntu1.9"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "libsoup2.4",
"purl": "pkg:deb/ubuntu/libsoup2.4@2.74.3-6ubuntu1.9?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.74.3-6ubuntu1.9"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.74.3-1",
"2.74.3-2",
"2.74.3-3",
"2.74.3-6",
"2.74.3-6build1",
"2.74.3-6ubuntu1",
"2.74.3-6ubuntu1.1",
"2.74.3-6ubuntu1.2",
"2.74.3-6ubuntu1.3",
"2.74.3-6ubuntu1.4",
"2.74.3-6ubuntu1.5",
"2.74.3-6ubuntu1.6",
"2.74.3-6ubuntu1.7",
"2.74.3-6ubuntu1.8"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-4271",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-5119",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-6324",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-66339",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-77014",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-77680",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-85197",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-85534",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:24.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "gir1.2-soup-3.0",
"binary_version": "3.4.4-5ubuntu0.9"
},
{
"binary_name": "libsoup-3.0-0",
"binary_version": "3.4.4-5ubuntu0.9"
},
{
"binary_name": "libsoup-3.0-common",
"binary_version": "3.4.4-5ubuntu0.9"
},
{
"binary_name": "libsoup-3.0-tests",
"binary_version": "3.4.4-5ubuntu0.9"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "libsoup3",
"purl": "pkg:deb/ubuntu/libsoup3@3.4.4-5ubuntu0.9?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.4.4-5ubuntu0.9"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.4.2-4",
"3.4.4-1",
"3.4.4-2",
"3.4.4-4",
"3.4.4-5",
"3.4.4-5build1",
"3.4.4-5build2",
"3.4.4-5ubuntu0.1",
"3.4.4-5ubuntu0.2",
"3.4.4-5ubuntu0.3",
"3.4.4-5ubuntu0.4",
"3.4.4-5ubuntu0.5",
"3.4.4-5ubuntu0.6",
"3.4.4-5ubuntu0.7",
"3.4.4-5ubuntu0.8"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-4271",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-5119",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-6324",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-66339",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-77014",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-77680",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-85197",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-85534",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:26.04:LTS"
}
},
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "gir1.2-soup-3.0",
"binary_version": "3.6.6-1ubuntu0.1"
},
{
"binary_name": "libsoup-3.0-0",
"binary_version": "3.6.6-1ubuntu0.1"
},
{
"binary_name": "libsoup-3.0-common",
"binary_version": "3.6.6-1ubuntu0.1"
},
{
"binary_name": "libsoup-3.0-tests",
"binary_version": "3.6.6-1ubuntu0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "libsoup3",
"purl": "pkg:deb/ubuntu/libsoup3@3.6.6-1ubuntu0.1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.6.6-1ubuntu0.1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.6.5-4",
"3.6.5-5",
"3.6.5-6",
"3.6.5-7",
"3.6.5-9",
"3.6.6-1"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2026-66339",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-77014",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-77680",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:26.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "gir1.2-soup-2.4",
"binary_version": "2.74.3-10.1ubuntu5+esm3"
},
{
"binary_name": "libsoup-2.4-1",
"binary_version": "2.74.3-10.1ubuntu5+esm3"
},
{
"binary_name": "libsoup-gnome-2.4-1",
"binary_version": "2.74.3-10.1ubuntu5+esm3"
},
{
"binary_name": "libsoup2.4-common",
"binary_version": "2.74.3-10.1ubuntu5+esm3"
},
{
"binary_name": "libsoup2.4-tests",
"binary_version": "2.74.3-10.1ubuntu5+esm3"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:26.04:LTS",
"name": "libsoup2.4",
"purl": "pkg:deb/ubuntu/libsoup2.4@2.74.3-10.1ubuntu5+esm3?arch=source\u0026distro=esm-apps/resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.74.3-10.1ubuntu5+esm3"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.74.3-10.1ubuntu4",
"2.74.3-10.1ubuntu5",
"2.74.3-10.1ubuntu5+esm1",
"2.74.3-10.1ubuntu5+esm2"
]
}
],
"aliases": [],
"details": "It was discovered that libsoup incorrectly handled certain HTTP/2 requests.\nA remote attacker could possibly use this issue to cause a denial of\nservice. This issue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS.\n(CVE-2026-4271)\n\nIt was discovered that libsoup incorrectly handled certain HTTPS proxy\nconnections. A remote attacker could possibly use this issue to obtain\nsensitive information. This issue only affected Ubuntu 22.04 LTS, Ubuntu\n24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-5119)\n\nIt was discovered that libsoup incorrectly parsed certain chunked HTTP\nrequests. A remote attacker could possibly use this issue to bypass\nsecurity controls. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04\nLTS, and Ubuntu 26.04 LTS. (CVE-2026-6324)\n\nIt was discovered that libsoup incorrectly handled proxy authentication\ncredentials. A remote attacker could possibly use this issue to obtain\nsensitive information. (CVE-2026-66339)\n\nIt was discovered that libsoup incorrectly handled certain HTTP Range\nheaders. A remote attacker could possibly use this issue to cause a denial\nof service. (CVE-2026-77014, CVE-2026-77680)\n\nIt was discovered that libsoup incorrectly handled certain HTTP/2\nconnections. A remote attacker could possibly use this issue to obtain\nsensitive information or execute arbitrary code. This issue only affected\nUbuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-85197)\n\nIt was discovered that libsoup incorrectly handled certain HTTP/2\ntransfers. A remote attacker could possibly use this issue to cause a\ndenial of service. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04\nLTS, and Ubuntu 26.04 LTS. (CVE-2026-85534)",
"id": "USN-8890-1",
"modified": "2026-10-06T16:43:00Z",
"published": "2026-10-06T16:43:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-8890-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-4271"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-5119"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-6324"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-66339"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-77014"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-77680"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-85197"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-85534"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "libsoup2.4, libsoup3 vulnerabilities",
"upstream": [
"UBUNTU-CVE-2026-4271",
"UBUNTU-CVE-2026-5119",
"UBUNTU-CVE-2026-6324",
"UBUNTU-CVE-2026-66339",
"UBUNTU-CVE-2026-77014",
"UBUNTU-CVE-2026-77680",
"UBUNTU-CVE-2026-85197",
"UBUNTU-CVE-2026-85534"
]
}
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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.
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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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