USN-8890-2 (UBUNTU-CVE-2026-4271)

Vulnerability from osv_ubuntu – Published: 2026-10-21 21:36 – Updated: 2026-10-21 21:36 – Source website
VLAI
Summary
libsoup3 vulnerabilities
Details

USN-8890-1 fixed vulnerabilities in libsoup. This update provides the corresponding updates for libsoup3 on Ubuntu 26.10.

Original advisory 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
To clipboard 

{
  "affected": [
    {
      "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:26.10"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "gir1.2-soup-3.0",
            "binary_version": "3.6.6-1ubuntu3"
          },
          {
            "binary_name": "libsoup-3.0-0",
            "binary_version": "3.6.6-1ubuntu3"
          },
          {
            "binary_name": "libsoup-3.0-common",
            "binary_version": "3.6.6-1ubuntu3"
          },
          {
            "binary_name": "libsoup-3.0-tests",
            "binary_version": "3.6.6-1ubuntu3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.10",
        "name": "libsoup3",
        "purl": "pkg:deb/ubuntu/libsoup3@3.6.6-1ubuntu3?arch=source\u0026distro=stonking"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.6.6-1ubuntu3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.6.6-1"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-8890-1 fixed vulnerabilities in libsoup. This update provides the\ncorresponding updates for libsoup3 on Ubuntu 26.10.\n\nOriginal advisory details:\n\n It was discovered that libsoup incorrectly handled certain HTTP/2\n requests.\n A remote attacker could possibly use this issue to cause a denial of\n service. This issue only affected Ubuntu 24.04 LTS and Ubuntu 26.04 LTS.\n (CVE-2026-4271)\n\n It was discovered that libsoup incorrectly handled certain HTTPS proxy\n connections. A remote attacker could possibly use this issue to obtain\n sensitive information. This issue only affected Ubuntu 22.04 LTS, Ubuntu\n 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-5119)\n\n It was discovered that libsoup incorrectly parsed certain chunked HTTP\n requests. A remote attacker could possibly use this issue to bypass\n security controls. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04\n LTS, and Ubuntu 26.04 LTS. (CVE-2026-6324)\n\n It was discovered that libsoup incorrectly handled proxy authentication\n credentials. A remote attacker could possibly use this issue to obtain\n sensitive information. (CVE-2026-66339)\n\n It was discovered that libsoup incorrectly handled certain HTTP Range\n headers. A remote attacker could possibly use this issue to cause a denial\n of service. (CVE-2026-77014, CVE-2026-77680)\n\n It was discovered that libsoup incorrectly handled certain HTTP/2\n connections. A remote attacker could possibly use this issue to obtain\n sensitive information or execute arbitrary code. This issue only affected\n Ubuntu 22.04 LTS, Ubuntu 24.04 LTS, and Ubuntu 26.04 LTS. (CVE-2026-85197)\n\n It was discovered that libsoup incorrectly handled certain HTTP/2\n transfers. A remote attacker could possibly use this issue to cause a\n denial of service. This issue only affected Ubuntu 22.04 LTS, Ubuntu 24.04\n LTS, and Ubuntu 26.04 LTS. (CVE-2026-85534)",
  "id": "USN-8890-2",
  "modified": "2026-10-21T21:36:06Z",
  "published": "2026-10-21T21:36:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8890-2"
    },
    {
      "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": "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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