ubuntu-cve-2026-40460
Vulnerability from osv_ubuntu
Published
2026-05-13 16:16
Modified
2026-06-01 18:48
Summary
Details

When NGINX Plus or NGINX Open Source are configured to use the HTTP/3 QUIC module, an attacker may be able to spoof their source IP address allowing for bypass of authorization or bypass of rate limiting.  Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnginx-mod-http-geoip",
            "binary_version": "1.28.0-6ubuntu1.4"
          },
          {
            "binary_name": "libnginx-mod-http-image-filter",
            "binary_version": "1.28.0-6ubuntu1.4"
          },
          {
            "binary_name": "libnginx-mod-http-perl",
            "binary_version": "1.28.0-6ubuntu1.4"
          },
          {
            "binary_name": "libnginx-mod-http-xslt-filter",
            "binary_version": "1.28.0-6ubuntu1.4"
          },
          {
            "binary_name": "libnginx-mod-mail",
            "binary_version": "1.28.0-6ubuntu1.4"
          },
          {
            "binary_name": "libnginx-mod-stream",
            "binary_version": "1.28.0-6ubuntu1.4"
          },
          {
            "binary_name": "libnginx-mod-stream-geoip",
            "binary_version": "1.28.0-6ubuntu1.4"
          },
          {
            "binary_name": "nginx",
            "binary_version": "1.28.0-6ubuntu1.4"
          },
          {
            "binary_name": "nginx-common",
            "binary_version": "1.28.0-6ubuntu1.4"
          },
          {
            "binary_name": "nginx-core",
            "binary_version": "1.28.0-6ubuntu1.4"
          },
          {
            "binary_name": "nginx-extras",
            "binary_version": "1.28.0-6ubuntu1.4"
          },
          {
            "binary_name": "nginx-full",
            "binary_version": "1.28.0-6ubuntu1.4"
          },
          {
            "binary_name": "nginx-light",
            "binary_version": "1.28.0-6ubuntu1.4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "nginx",
        "purl": "pkg:deb/ubuntu/nginx@1.28.0-6ubuntu1.4?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.28.0-6ubuntu1.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.26.3-2ubuntu1",
        "1.26.3-3ubuntu1",
        "1.26.3-3ubuntu2",
        "1.26.3-3ubuntu3",
        "1.28.0-3ubuntu1",
        "1.28.0-4ubuntu1",
        "1.28.0-6ubuntu1",
        "1.28.0-6ubuntu1.1",
        "1.28.0-6ubuntu1.2",
        "1.28.0-6ubuntu1.3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libnginx-mod-http-geoip",
            "binary_version": "1.28.3-2ubuntu1.2"
          },
          {
            "binary_name": "libnginx-mod-http-image-filter",
            "binary_version": "1.28.3-2ubuntu1.2"
          },
          {
            "binary_name": "libnginx-mod-http-perl",
            "binary_version": "1.28.3-2ubuntu1.2"
          },
          {
            "binary_name": "libnginx-mod-http-xslt-filter",
            "binary_version": "1.28.3-2ubuntu1.2"
          },
          {
            "binary_name": "libnginx-mod-mail",
            "binary_version": "1.28.3-2ubuntu1.2"
          },
          {
            "binary_name": "libnginx-mod-stream",
            "binary_version": "1.28.3-2ubuntu1.2"
          },
          {
            "binary_name": "libnginx-mod-stream-geoip",
            "binary_version": "1.28.3-2ubuntu1.2"
          },
          {
            "binary_name": "nginx",
            "binary_version": "1.28.3-2ubuntu1.2"
          },
          {
            "binary_name": "nginx-common",
            "binary_version": "1.28.3-2ubuntu1.2"
          },
          {
            "binary_name": "nginx-core",
            "binary_version": "1.28.3-2ubuntu1.2"
          },
          {
            "binary_name": "nginx-extras",
            "binary_version": "1.28.3-2ubuntu1.2"
          },
          {
            "binary_name": "nginx-full",
            "binary_version": "1.28.3-2ubuntu1.2"
          },
          {
            "binary_name": "nginx-light",
            "binary_version": "1.28.3-2ubuntu1.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "nginx",
        "purl": "pkg:deb/ubuntu/nginx@1.28.3-2ubuntu1.2?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.28.3-2ubuntu1.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.28.0-6ubuntu1",
        "1.28.1-2ubuntu1",
        "1.28.1-3ubuntu1",
        "1.28.2-2ubuntu1",
        "1.28.3-2ubuntu1",
        "1.28.3-2ubuntu1.1"
      ]
    }
  ],
  "aliases": [],
  "details": "When NGINX Plus or NGINX Open Source are configured to use the HTTP/3 QUIC\u00a0module, an attacker may be able to spoof their source IP address allowing for bypass of authorization or bypass of rate limiting.\u00a0\u00a0Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.",
  "id": "UBUNTU-CVE-2026-40460",
  "modified": "2026-06-01T18:48:11Z",
  "published": "2026-05-13T16:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-40460"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-40460"
    },
    {
      "type": "REPORT",
      "url": "https://my.f5.com/manage/s/article/K000161068"
    },
    {
      "type": "REPORT",
      "url": "https://nginx.org/en/security_advisories.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8354-1"
    }
  ],
  "related": [
    "USN-8354-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-40460"
  ]
}



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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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